├── ChangeLog.txt ├── CloseSandbox.bat ├── Console.exe ├── DesktopSwitcher.exe ├── HTCC 2016 Student Research Conference Abstract.docx ├── KeepAlive.exe ├── LICENSE ├── ProtectedDesktops.exe ├── ReadMe.txt ├── Source ├── Common │ ├── Sandbox.cpp │ └── Sandbox.h ├── Console │ ├── Console.cpp │ ├── Console.vcxproj │ └── Console.vcxproj.filters ├── DesktopSwitcher │ ├── DesktopSwitcher.cpp │ ├── DesktopSwitcher.vcxproj │ └── DesktopSwitcher.vcxproj.filters ├── KeepAlive │ ├── KeepAlive.cpp │ ├── KeepAlive.vcxproj │ └── KeepAlive.vcxproj.filters ├── ProtectedDesktops.cpp ├── ProtectedDesktops.sln ├── ProtectedDesktops.v12.suo ├── ProtectedDesktops.vcxproj ├── ProtectedDesktops.vcxproj.filters └── RunMe │ ├── RunMe.cpp │ ├── RunMe.vcxproj │ └── RunMe.vcxproj.filters ├── Windows8&10 ├── ReadMe.txt ├── RunMe.bat └── RunMe.exe └── settings.ini /ChangeLog.txt: -------------------------------------------------------------------------------- 1 | Version 0.2 2 | 3 | 4 | Added Windows 8 & 10 support. 5 | 6 | Added small reliability and speed improvements. 7 | 8 | 9 | 10 | Version 0.1: 11 | 12 | 13 | Original upload 14 | -------------------------------------------------------------------------------- /CloseSandbox.bat: -------------------------------------------------------------------------------- 1 | taskkill /f /t /fi "USERNAME eq Sandbox" -------------------------------------------------------------------------------- /Console.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/Console.exe -------------------------------------------------------------------------------- /DesktopSwitcher.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/DesktopSwitcher.exe -------------------------------------------------------------------------------- /HTCC 2016 Student Research Conference Abstract.docx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/HTCC 2016 Student Research Conference Abstract.docx -------------------------------------------------------------------------------- /KeepAlive.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/KeepAlive.exe -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /ProtectedDesktops.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/ProtectedDesktops.exe -------------------------------------------------------------------------------- /ReadMe.txt: -------------------------------------------------------------------------------- 1 | ProtectedDesktops: 2 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 3 | 4 | This program was written as part of an undergraduate research project 5 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 6 | 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | Contact: Josh.DuFault@gmail.com 11 | 12 | 13 | Version 0.2 14 | 15 | This program is in beta. It has been tested on Windows 7 x64, Windows 8 x64, and Windows 10 x64. 16 | 17 | 18 | 19 | This program is free software: you can redistribute it and/or modify 20 | it under the terms of the GNU General Public License as published by 21 | the Free Software Foundation, either version 3 of the License, or 22 | (at your option) any later version. 23 | 24 | This program is distributed in the hope that it will be useful, 25 | but WITHOUT ANY WARRANTY; without even the implied warranty of 26 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 | GNU General Public License for more details. 28 | 29 | You should have received a copy of the GNU General Public License 30 | along with ProtectedDesktops. If not, see . 31 | 32 | 33 | 34 | Application Files: 35 | 36 | 37 | ProtectedDesktops.exe 38 | 39 | Console.exe 40 | 41 | KeepAlive.exe 42 | 43 | DesktopSwitcher.exe 44 | 45 | Settings.ini 46 | 47 | CloseSandbox.bat 48 | 49 | 50 | 51 | Directions: 52 | 53 | 54 | 1. The user must be running Windows Vista or later and have 3 user accounts set up as follows: 55 | 56 | Account 1: the main user. This is the account you use at the Windows logon screen. This account 57 | 58 | should be a Standard User Account 59 | 60 | Account 2: an administrator account. 61 | 62 | Account 3: an account to be used with the sandbox. The account could be used to isolate 63 | 64 | potentially dangerous programs or protect sensitive data. It obviously can't be used for both at the 65 | 66 | same time. 67 | 68 | All accounts must have a password. 69 | 70 | The user must have logged on to all 3 accounts through the main Windows logon screen at least once. 71 | 72 | Make user you can a run as for Account 3. Hold down shift and right click on a simple program like 73 | 74 | notepad. Select "Run as different user." Enter the username and password of Account 3. Verify the 75 | 76 | program ran. 77 | 78 | 79 | 80 | 2. The user must have a file manager other than Windows Explorer installed in a protected location. For 81 | 82 | example: have Explorer++ installed in C:\Program Files (x86)\ 83 | 84 | 85 | 3. The Settings.ini file must be updated before use. It is in the following format: 86 | 87 | Main user 88 | 89 | Sandboxed user 90 | 91 | Path to file manager 92 | 93 | The included Settings.ini file has an example. 94 | 95 | 96 | 4. The CloseSandbox.bat file also has to be updated. 97 | 98 | The file can be opened in any text editor such as notepad. 99 | 100 | The part of the line that says "Sandbox" must be changed to the name of Account 3. 101 | 102 | For example: taskkill /f /t /fi "USERNAME eq MyOtherUserAccount" 103 | 104 | 105 | 4. All program files should be saved in a protected location such as C:\Program Files (x86)\ 106 | 107 | 108 | 5. Run ProtectedDesktops.exe and enter the requested information when prompted. 109 | 110 | 111 | For Windows 8 & 10: also follow the directions in the Windows 8 & 10 ReadMe.txt in the corresponding folder. 112 | 113 | 114 | The sandbox is now set up. Run DesktopSwitcher.exe to switch between the sandbox and the main desktop. 115 | 116 | Run CloseSandbox.bat to close the sandbox by right clicking and selecting "Run as administrator." 117 | 118 | Programs launched in the sandbox have no access to programs launched on the main desktop and vice versa. 119 | 120 | Processes cannot jump to the other desktop. They cannot keylog or launch shatter attacks across the 121 | 122 | desktop barrier. They cannot read or write to the memory of processes on the other side of the sandbox. 123 | 124 | Processes run on the sandbox have a different set of user folders then the main user. The two users 125 | 126 | cannot read or write to each other's files. Otherwise, programs run like normal in the sandbox. 127 | 128 | Restarting the computer reverts all settings adjusted by the program back to normal. 129 | 130 | 131 | 132 | Background: 133 | 134 | 135 | Antivirus programs block only 45% of malware attacks according to Brian Dye, the senior vice president 136 | 137 | for information security at Symantec in a Wall Street Journal interview. Many security products use 138 | 139 | sandboxes to attempt to provide better protection by isolating potentially dangerous processes or 140 | 141 | protect sensitive information; however, many of the implementations are easily bypassed or cause 142 | 143 | additional security problems. Common sandboxing techniques currently in use and their limitations are 144 | 145 | listed below. 146 | 147 | 148 | 1. Running programs on the same desktop with reduced privileges using a restricted or 149 | 150 | impersonation token: 151 | 152 | Malware can use windows messaging based attacks i.e. shatter attacks to jump to a more 153 | 154 | privileged program. 155 | 156 | All programs in the same session can read each others memory by default and steal 157 | 158 | passwords or other sensitive data from memory. 159 | 160 | 161 | 2. Creating separate desktops to isolate potentially dangerous programs or protect sensitive 162 | 163 | data. 164 | 165 | Desktops are secured by user, not by process. Malware launched by the same user can 166 | 167 | easily jump between desktops. 168 | 169 | Programs that switch to a dimmed desktop the way Windows does when UAC is invoked are 170 | 171 | merely mimicking the Windows secure desktop. Only processes with system privileges have access to that 172 | 173 | desktop. Instead, these programs create a simple alternate desktop that is easily accessible. 174 | 175 | 176 | 3. Combining numbers 1 and 2, and using a restricted token with a made up SID and adding a deny 177 | 178 | for that SID to the main desktop's access control list to prevent malware from jumping to the main 179 | 180 | desktop. 181 | 182 | Restricted tokens must contain the RESTRICTED SID which gives read access to a users 183 | 184 | files and process memory. Malware can still steal passwords from memory or read sensitive files. 185 | 186 | 187 | 4. Using Job Objects to prevent malware from accessing other processes. 188 | 189 | Job objects don't prevent global hooks. Keylogging and code injection are still 190 | 191 | possible. Malware can still steal passwords and jump to less restricted processes. 192 | 193 | In Windows 7 and below, Job Objects don't nest. This means if a program is put into a 194 | 195 | Job Object, it can't use its own. Many programs use Job Objects to implement their own internal 196 | 197 | sandboxes. 198 | 199 | 200 | 5. Using integrity levels to prevent shatter attacks, code injection, and key logging. 201 | 202 | Integrity levels block most windows messages to more privileged processes but not all. 203 | 204 | Some messages are still allowed through and can be used to launch a shatter attack. 205 | 206 | A program installed in a protected area can have a request in its manifest to bypass 207 | 208 | this protection entirely. Some trusted programs are frequently taken over by malware e.g. internet 209 | 210 | browsers. 211 | 212 | Programs running at one integrity level have access to any other program running at the 213 | 214 | same or lower integrity level. 215 | 216 | Many applications use integrity levels in internal sandboxes creating a child process at 217 | 218 | a lower integrity level than the parent program to run potentially dangerous code. Putting such an 219 | 220 | application in a general purpose sandbox using integrity levels can damage the application's internal 221 | 222 | sandbox by putting the parent and child processes at the same integrity level. 223 | 224 | Programs not designed to run at a low or untrusted integrity level frequently don't work 225 | 226 | correctly when forced to do so. 227 | 228 | 229 | 6. Using all of the above with a token so restricted that it has no access to the file system. 230 | 231 | Effective from a security point of view but such a program is not able to do anything 232 | 233 | useful on its own. It needs to be built specifically to be used with a more privileged broker to provide 234 | 235 | a gateway to system resources. Individual application sandboxes can be written this way but a program 236 | 237 | not built to run in such a sandbox won't work. 238 | 239 | 240 | 241 | Hypothesis: It's possible to use Windows' built in security features in a way to make a sandbox that 242 | 243 | better protects a user's data. 244 | 245 | 246 | It is possible to launch a program using an impersonation token as an alternate user on a newly created 247 | 248 | desktop and then set the discretionary access control list (DACL) on the desktops to prevent programs 249 | 250 | from jumping over. This will prevent a program launched by any user from accessing the other desktop. 251 | 252 | Desktops block all window messages and global hooks preventing shatter attacks and keylogging. A process 253 | 254 | doesn't have write access to any program launched by a different user, preventing code injection. Each 255 | 256 | user has its own set of files and can't access another user's files. 257 | 258 | Any process, regardless of user, can read the memory of any other process in the same logon session at 259 | 260 | the same integrity level. A malicious program can still steal sensitive data out of memory. Processes 261 | 262 | are protected by DACLs and adding a deny entry in each process blocking the sandboxed user would prevent 263 | 264 | those programs from stealing information out of memory. However, this would mean constantly watching for 265 | 266 | every new process that's created to add the needed denies. An exception is that a desktop similiar to 267 | 268 | the Windows secure desktop can be created to enter passwords. Programs running as administrator should 269 | 270 | be kept to a minimum because they can the most damage if compromised but since the StartSandbox.exe 271 | 272 | process has to be run as admin anyway to set all the DACLs, it can create a desktop that only programs 273 | 274 | running as an administrator can access. This won't protect standard processes. 275 | 276 | The key to this sandbox is the default DACL. If no DACL is specified when a new process is launched, 277 | 278 | Windows will create a default DACL based on the parent process's token. After the initial startup, the 279 | 280 | parent process is typically explorer.exe. Explorer.exe consists of Windows Explorer and the Start Menu. 281 | 282 | The default DACL can be modified to add the neccessary deny entries to create a secure sandbox. Then, 283 | 284 | any new program launched will automatically receive the same DACL and any new program that it launches 285 | 286 | will receive the same DACL and so on. The only exception is if a launching program specifies a DACL 287 | 288 | during creation which is typically only done for a reason such as creating an internal application 289 | 290 | sandbox. In this case, the default DACLs are still usually inherited automatically, the launching 291 | 292 | program just adds further restrictions. 293 | 294 | The resulting sandbox barrier blocks data theft from memory and files, keylogging, code injection, and 295 | 296 | shatter attacks across the sandbox barrier. Even attempts to shut down another process across the 297 | 298 | barrier are blocked. The clipboard and public user folders "C:\Users\Public" can be used to transfer 299 | 300 | files and data in and out of the sandbox. This sandbox can be used either to contain malicious programs 301 | 302 | or protect sensitive information. Only a process with admin credentials can see across the barrier. A 303 | 304 | desktop switching program run with admin credentials is neccessary to switch visible desktops. A batch 305 | 306 | file running taskkill as administrator can be used to end all programs in the sandbox. The desktop will 307 | 308 | automatically close when all programs with access to it are closed. 309 | 310 | Integrity levels and Job Objects aren't considered because they interfer with commonly used 311 | 312 | applications. 313 | 314 | 315 | 316 | Testing: 317 | 318 | 319 | The sandbox successfully blocked the following actions across the sandbox barrier: 320 | 321 | 1. Reading and writing information in a process' memory. 322 | 323 | 2. Reading or writing to the other user's files. 324 | 325 | 3. Keylogging. 326 | 327 | 4. Windows messages. 328 | 329 | 330 | All tested programs worked normally in the sandbox. This includes involved programs that set their own 331 | 332 | internal sandboxes. 333 | 334 | 335 | 336 | Remaining vulnerabilities: 337 | 338 | 339 | 1. This only protects against malware running with user rights. If it gets administrator access 340 | 341 | either through user error or a novel privilege escalation attack, security is compromised. 342 | 343 | 2. There is no way to isolate the Windows kernel and no way to protect against a kernel exploit. 344 | 345 | 3. Processes on either side of the sandbox access some of the same resources. There are multiple 346 | 347 | writable locations that both sides have access to. It might be possible for malware to leave malicious 348 | 349 | code waiting in a place that a vulnerable program on the other side will access. 350 | 351 | 352 | 353 | Conclusion: 354 | 355 | 356 | The remaining vulnerabilities are significantly more difficult than merely reading a password out of 357 | 358 | memory. Perfect security is impossible but this sandbox is more effective than several other currently 359 | 360 | used types. It is also lighter on system resources: 361 | 362 | Total application size: less than 1MB. 363 | 364 | CPU use after initial setup: 0. 365 | 366 | Installation: not required. 367 | 368 | 369 | Microsoft could implement a similiar sandbox in an update to Windows 10. Windows 10 currently offers a 370 | 371 | multiple desktop feature but it is entirely cosmetic and offers no security. This would give a native 372 | 373 | way for users to protect sensitive information, such as banking data, from theft and keep important 374 | 375 | files safe from destructive malware, such as ransomware. 376 | 377 | 378 | Future research possibilities include setting default DACLs on kernel objects and inherited permissions 379 | 380 | on files and registry keys to isolate them against vulnerability 3. -------------------------------------------------------------------------------- /Source/Common/Sandbox.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | 29 | #ifndef WIN32_LEAN_AND_MEAN 30 | #define WIN32_LEAN_AND_MEAN 31 | #endif 32 | 33 | #include "Sandbox.h" 34 | using namespace std; 35 | 36 | // Opens settings file 37 | // gets primary user, user account & file manager to use for sandbox 38 | // Returns true 39 | bool getSettings(wstring &mainUser, wstring &sandboxUser, wstring &fileManager) 40 | { 41 | bool getSettingsWorked = false; 42 | 43 | wifstream fin; 44 | fin.open(SETTINGSFILE.c_str()); 45 | 46 | if (fin) 47 | getline(fin, mainUser); 48 | 49 | if (fin) 50 | getline(fin, sandboxUser); 51 | 52 | if (fin) 53 | getline(fin, fileManager); 54 | 55 | if (fin && mainUser != L"" && sandboxUser != L"" && fileManager != L"") 56 | getSettingsWorked = true; 57 | else 58 | fin.clear(); 59 | 60 | fin.close(); 61 | 62 | return getSettingsWorked; 63 | } 64 | 65 | bool createDACL(SECURITY_ATTRIBUTES *newDACL) 66 | { 67 | bool createDACLWorked = false; 68 | 69 | wstring userDenySIDString, userallowSIDString; 70 | 71 | // Sets owner to Builtin/Administrators 72 | // Denies access to userToDeny 73 | // Gives full control to Builtin/Administrators 74 | // Gives read & execute access to userToAllow 75 | wstring newACE; 76 | newACE = L"D:(A;OICI;GA;;;SY)(A;OICI;GA;;;BA)"; 77 | 78 | // createDACLWorked is true iff denyDACL is successfully set 79 | if (ConvertStringSecurityDescriptorToSecurityDescriptor(newACE.c_str(), SDDL_REVISION_1, &(newDACL->lpSecurityDescriptor), NULL)) 80 | createDACLWorked = true; 81 | 82 | return createDACLWorked; 83 | } 84 | 85 | // Adds deny ACE entry for specified user 86 | // Returns true on successfull creation of security descriptor 87 | // Returns false otherwise 88 | bool createDACL(const wstring &userToAllow, SECURITY_ATTRIBUTES *newDACL, const wstring &userToDeny, bool isDesktop) 89 | { 90 | bool createDACLWorked = false; 91 | 92 | wstring userDenySIDString, userallowSIDString; 93 | 94 | // Must have a successful creation of user to allow or only admin will have access 95 | // Must either have a successful creation of user to deny or have no user to deny 96 | // No point in continuing otherwise 97 | if (!usernameToSIDString(userToAllow, userallowSIDString) 98 | || !usernameToSIDString(userToDeny, userDenySIDString)) 99 | return createDACLWorked; 100 | 101 | // Sets owner to Builtin/Administrators 102 | // Denies access to userToDeny 103 | // Gives full control to Builtin/Administrators 104 | // Gives read & execute access to userToAllow 105 | wstring newACE; 106 | newACE = L"D:(D;OICI;GA;;;" + userDenySIDString + L")(A;OICI;GA;;;SY)(A;OICI;GA;;;BA)(A;OICI;GA;;;" + userallowSIDString + L")"; 107 | 108 | // Gives desktop access to Modern apps 109 | if (isDesktop) 110 | newACE += L"(A;OICI;GA;;;S-1-15-2-1)"; 111 | 112 | // createDACLWorked is true iff denyDACL is successfully set 113 | if (ConvertStringSecurityDescriptorToSecurityDescriptor(newACE.c_str(), SDDL_REVISION_1, &(newDACL->lpSecurityDescriptor), NULL)) 114 | createDACLWorked = true; 115 | 116 | return createDACLWorked; 117 | } 118 | 119 | // Sets DACL and owner on object with specified handle 120 | // Returns true on successful setting of security info 121 | // Returns false otherwise 122 | bool setDACL(SECURITY_ATTRIBUTES newDACL, HANDLE objectHandle, SE_OBJECT_TYPE objectType) 123 | { 124 | bool setDACLWorked = false; 125 | 126 | BOOL existsACL = TRUE, isDefaultACL = TRUE; 127 | PACL DACLtoSet; 128 | PSID newOwner; 129 | ConvertStringSidToSid(L"BA", &newOwner); // SID for Builtin/Administrators 130 | 131 | // Sets the bit flag mask 132 | SECURITY_INFORMATION securityToSet; 133 | if (objectType == SE_KERNEL_OBJECT) 134 | securityToSet = OWNER_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION | LABEL_SECURITY_INFORMATION; 135 | else 136 | securityToSet = OWNER_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION; 137 | 138 | // Pulls the DACL out of the newDACL structure 139 | // Sets the DACL of the object with specified handle 140 | // Function is not bool, this return value means success 141 | if (GetSecurityDescriptorDacl(newDACL.lpSecurityDescriptor, &existsACL, &DACLtoSet, &isDefaultACL) 142 | && SetSecurityInfo(objectHandle, objectType, securityToSet, newOwner, NULL, DACLtoSet, NULL) == ERROR_SUCCESS) 143 | setDACLWorked = true; 144 | 145 | return setDACLWorked; 146 | } 147 | 148 | bool setDefaultDACL(SECURITY_ATTRIBUTES newDACL, HANDLE &tokenHandle) 149 | { 150 | bool setDefaultDACLworked = false; 151 | 152 | PACL sandboxACLtoSet; 153 | BOOL existsACL = TRUE, isDefaultACL = TRUE; 154 | 155 | if (GetSecurityDescriptorDacl(newDACL.lpSecurityDescriptor, &existsACL, &sandboxACLtoSet, &isDefaultACL)) 156 | { 157 | TOKEN_DEFAULT_DACL defaultDACL; 158 | defaultDACL.DefaultDacl = sandboxACLtoSet; 159 | 160 | if (SetTokenInformation(tokenHandle, TokenDefaultDacl, &defaultDACL, sizeof(defaultDACL))) 161 | setDefaultDACLworked = true; 162 | } 163 | 164 | return setDefaultDACLworked; 165 | } 166 | 167 | // Creates DACL that only gives access to admin and system 168 | // Sets userSIDString to SID wstring version of username 169 | // Returns true on successful completion of ConvertSidToStringSid(), false otherwise 170 | bool usernameToSIDString(const wstring &username, wstring &userSIDString) 171 | { 172 | bool usernameToSIDStringWorked = false; 173 | 174 | SID userSID[SECURITY_MAX_SID_SIZE]; 175 | DWORD userSIDSize = SECURITY_MAX_SID_SIZE; 176 | DWORD domainNameSize = 0; 177 | SID_NAME_USE userType; 178 | LPTSTR LPuserSIDString = nullptr; 179 | 180 | // Get size of buffer needed for domainName 181 | LookupAccountName(NULL, username.c_str(), &userSID, &userSIDSize, NULL, &domainNameSize, &userType); 182 | TCHAR *domainName = new TCHAR[domainNameSize]; 183 | 184 | // Create wstring version of SIDS for userToDenySID and userToAllowSID 185 | if (LookupAccountName(NULL, username.c_str(), &userSID, &userSIDSize, domainName, &domainNameSize, &userType) 186 | && ConvertSidToStringSid(&userSID, &LPuserSIDString)) 187 | { 188 | userSIDString = LPuserSIDString; 189 | usernameToSIDStringWorked = true; 190 | // Needed after ConvertSidToStringSid() 191 | LocalFree(LPuserSIDString); 192 | } 193 | 194 | delete[] domainName; 195 | 196 | return usernameToSIDStringWorked; 197 | } 198 | 199 | // Don't want to echo back password 200 | bool keyboardEchoOff() 201 | { 202 | bool keyboardEchoOff = false; 203 | 204 | HANDLE consoleInputHandle = GetStdHandle(STD_INPUT_HANDLE); 205 | DWORD mode; 206 | 207 | if (GetConsoleMode(consoleInputHandle, &mode) && SetConsoleMode(consoleInputHandle, mode - ENABLE_ECHO_INPUT)) 208 | keyboardEchoOff = true; 209 | 210 | return keyboardEchoOff; 211 | } 212 | 213 | bool getCredentials(const wstring &user, wstring &userCreds) 214 | { 215 | bool getCredentials = false; 216 | 217 | // Need credentials for sandboxed user 218 | wstring sandboxUserCred; 219 | wcout << L"Sandbox switched to secure desktop to enter credentials." << '\n' << endl; 220 | wcout << L"Enter password for " << user << ": "; 221 | if (getline(wcin, userCreds)) 222 | getCredentials = true; 223 | wcout << '\n' << endl; 224 | 225 | return getCredentials; 226 | } 227 | 228 | bool launchProcessOnDesktop(wstring process, wstring desktop, bool resume) 229 | { 230 | bool launchProcessOnDesktop = false; 231 | 232 | if (!switchTo(desktop)) 233 | return launchProcessOnDesktop; 234 | 235 | // Create new process on admin only desktop to get console there 236 | PROCESS_INFORMATION processInfo = { 0 }; 237 | STARTUPINFOW processSettings = { 0 }; 238 | processSettings.cb = sizeof(STARTUPINFOW); 239 | 240 | vector newDesktop(desktop.begin(), desktop.end()); 241 | newDesktop.push_back(0); 242 | processSettings.lpDesktop = &newDesktop[0]; 243 | 244 | if (CreateProcess(process.c_str(), NULL, NULL, NULL, FALSE, CREATE_NEW_CONSOLE | CREATE_SUSPENDED, NULL, NULL, &processSettings, &processInfo)) 245 | launchProcessOnDesktop = true; 246 | 247 | if (resume) 248 | ResumeThread(processInfo.hThread); 249 | 250 | // Give console.exe time to fully start up 251 | WaitForSingleObject(processInfo.hProcess, 60000); 252 | 253 | return launchProcessOnDesktop; 254 | } 255 | 256 | // Function that launches file manager with impersonation token 257 | // Returns true on successful completion 258 | // Returns false otherwise 259 | bool launchFileManager(const wstring &userToAllow, const wstring &userToDeny, const wstring &fileManager, const wstring &desktop, bool isExplorer) 260 | { 261 | bool launchFileManagerWorked = false; 262 | 263 | wstring sandboxUserCred; 264 | 265 | // Switch to admin only desktop to get password 266 | // Get a console on new desktop 267 | // Get password 268 | switchTo(ADMIN); 269 | if (!getCredentials(userToAllow, sandboxUserCred)) 270 | return launchFileManagerWorked; 271 | 272 | // Unused Code to set desktop in STARTUPINFOW, here for documentation 273 | // Undocumented feature of CreateProcessWithLogonW() causes it to assing new logon SID 274 | // when desktop is specified, causing GUI problems 275 | // vector newDesktop(desktop.begin(), desktop.end()); 276 | // newDesktop.push_back(0); 277 | // processSettings.lpDesktop = &newDesktop[0]; 278 | 279 | // Switch to indicated desktop to launch program 280 | switchTo(desktop); 281 | 282 | // By the power of Grayskull . . . I HAVE THE POWER!!! 283 | SetPrivilege(SE_DEBUG_NAME, TRUE); 284 | 285 | // Start Launcher as new user to get token 286 | // Using CreateProcessWithLogonW() to retain Logon SID 287 | PROCESS_INFORMATION launcherInfo = { 0 }; 288 | STARTUPINFOW launcherSettings = { 0 }; 289 | launcherSettings.cb = sizeof(STARTUPINFOW); 290 | wstring toStart; 291 | 292 | // Creating new process with CreateProcessWithLogonW() to get impersonation of specified user with old Logon SID 293 | if (isExplorer) 294 | { 295 | toStart = L"C:\\Windows\\Explorer.exe"; 296 | 297 | // Get a handle to explorer.exe 298 | // Return on failure 299 | DWORD explorerID; 300 | HWND explorerWindow = FindWindow(L"Shell_TrayWnd", NULL); 301 | if (explorerWindow == NULL) 302 | return launchFileManagerWorked; 303 | GetWindowThreadProcessId(explorerWindow, &explorerID); 304 | HANDLE explorerHANDLE = OpenProcess(PROCESS_ALL_ACCESS, FALSE, explorerID); 305 | if (explorerHANDLE == NULL) 306 | return launchFileManagerWorked; 307 | 308 | // Try to close Explorer.exe using Window message exit code 309 | // If that fails, terminate process 310 | if (!PostMessage(explorerWindow, WM_USER + 436, 0, 0)) 311 | TerminateProcess(explorerHANDLE, 0); 312 | 313 | // Give shell time to exit fully 314 | // WaitForSingleObject() isn't working correctly with explorer.exe on Windows 10 315 | DWORD exitCode; 316 | int count = 0; 317 | do 318 | { 319 | Sleep(500); 320 | GetExitCodeProcess(explorerHANDLE, &exitCode); 321 | count++; 322 | } while (exitCode == STILL_ACTIVE && count < 10); 323 | 324 | if (!CreateProcessWithLogonW(userToAllow.c_str(), NULL, sandboxUserCred.c_str(), LOGON_WITH_PROFILE, KEEPALIVE.c_str(), NULL, CREATE_NEW_CONSOLE, NULL, NULL, &launcherSettings, &launcherInfo)) 325 | return launchFileManagerWorked; 326 | } 327 | else 328 | { 329 | toStart = fileManager; 330 | 331 | if (!CreateProcessWithLogonW(userToAllow.c_str(), NULL, sandboxUserCred.c_str(), LOGON_WITH_PROFILE, KEEPALIVE.c_str(), NULL, CREATE_NEW_CONSOLE, NULL, NULL, &launcherSettings, &launcherInfo)) 332 | return launchFileManagerWorked; 333 | } 334 | 335 | // Gives the keepAlive program time to start fully 336 | WaitForSingleObject(launcherInfo.hProcess, 5000); 337 | 338 | // Code to impersonate using LogonUser() left for documentation 339 | // Creates new Logon SID 340 | // LogonUser(userToAllow.c_str(), NULL, sandboxUserCred.c_str(), LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, &tokenHandle) 341 | 342 | // Clear password as soon as possible 343 | SecureZeroMemory(&sandboxUserCred, sandboxUserCred.size()); 344 | 345 | PROCESS_INFORMATION processInfo = { 0 }; 346 | STARTUPINFOW processSettings = { 0 }; 347 | processSettings.cb = sizeof(STARTUPINFOW); 348 | SECURITY_ATTRIBUTES processDACL; 349 | HANDLE processTokenHandle = { 0 }; 350 | HANDLE tokenHandle = { 0 }; 351 | 352 | // Taking token from CreateProcessWithLogonW(), duplicating it, setting new default DACL and using that to launch file manager 353 | if (createDACL(userToAllow, &processDACL, userToDeny) 354 | && OpenProcessToken(launcherInfo.hProcess, MAXIMUM_ALLOWED, &processTokenHandle) 355 | && DuplicateTokenEx(processTokenHandle, MAXIMUM_ALLOWED, &processDACL, SecurityDelegation, TokenPrimary, &tokenHandle) 356 | && setDefaultDACL(processDACL, tokenHandle) 357 | && CreateProcessWithTokenW(tokenHandle, NULL, toStart.c_str(), NULL, 0, 0, NULL, &processSettings, &processInfo)) 358 | launchFileManagerWorked = true; 359 | 360 | // Let the power return. 361 | SetPrivilege(SE_DEBUG_NAME, FALSE); 362 | 363 | // Clean up 364 | // ResumeThread(launcherInfo.hThread); 365 | LocalFree(processDACL.lpSecurityDescriptor); 366 | CloseHandle(launcherInfo.hThread); 367 | CloseHandle(launcherInfo.hProcess); 368 | CloseHandle(tokenHandle); 369 | 370 | // These were only created if everything worked 371 | if (launchFileManagerWorked) 372 | { 373 | CloseHandle(processInfo.hThread); 374 | CloseHandle(processInfo.hProcess); 375 | } 376 | 377 | return launchFileManagerWorked; 378 | } 379 | 380 | // Takes name of desktop to be created and security attribute structure to be applied to desktop 381 | // Returns true if creation successful 382 | // Returns false otherwise 383 | bool opener(const wstring &sandboxD, SECURITY_ATTRIBUTES* denyDACL, HDESK &createSandbox) 384 | { 385 | bool openerWorked = false; 386 | 387 | // true iff a handle to sandboxD desktop is returned 388 | createSandbox = CreateDesktop(sandboxD.c_str(), NULL, NULL, 0, GENERIC_ALL, denyDACL); 389 | 390 | if (createSandbox != NULL) 391 | openerWorked = true; 392 | 393 | return openerWorked; 394 | } 395 | 396 | // Takes name of desktop to be created and security attribute structure to be applied to desktop 397 | // Returns true if creation successful 398 | // Returns false otherwise 399 | bool opener(const wstring &windowStation, SECURITY_ATTRIBUTES* allowDACL, HWINSTA &windowStationHandle) 400 | { 401 | bool openerWorked = false; 402 | 403 | // true iff a handle to sandboxD desktop is returned 404 | windowStationHandle = CreateWindowStation(windowStation.c_str(), NULL, GENERIC_ALL, allowDACL); 405 | 406 | if (windowStationHandle != NULL && SetProcessWindowStation(windowStationHandle)) 407 | openerWorked = true; 408 | 409 | return openerWorked; 410 | } 411 | 412 | // Returns name of currently active desktop 413 | wstring currentDesktopName() 414 | { 415 | 416 | HDESK currentDesktop = OpenInputDesktop(0, FALSE, DESKTOP_SWITCHDESKTOP); 417 | wstring currentNameString; 418 | 419 | // if currentDesktop handle is valid, get name of currentDesktop 420 | if (currentDesktop != NULL) 421 | { 422 | const int OBJECTNAME = 2; // Tells GetUserObjectInformation() to return name of desktop 423 | DWORD sizeNeeded = 0; 424 | // Get size of buffer needed 425 | GetUserObjectInformation(currentDesktop, OBJECTNAME, NULL, NULL, &sizeNeeded); 426 | 427 | // Create buffer of correct size 428 | TCHAR *currentName = new TCHAR[sizeNeeded]; 429 | // Get name 430 | if (GetUserObjectInformation(currentDesktop, OBJECTNAME, currentName, sizeNeeded, NULL)) 431 | currentNameString = currentName; 432 | 433 | delete[] currentName; 434 | 435 | CloseDesktop(currentDesktop); 436 | } 437 | 438 | return currentNameString; 439 | } 440 | 441 | // Returns name of currently window station 442 | wstring currentWindowStationName() 443 | { 444 | 445 | HWINSTA currentWindowStation = GetProcessWindowStation(); 446 | 447 | wstring currentNameString; 448 | 449 | // if currentDesktop handle is valid, get name of currentDesktop 450 | if (currentWindowStation != NULL) 451 | { 452 | const int OBJECTNAME = 2; // Tells GetUserObjectInformation() to return name of desktop 453 | DWORD sizeNeeded = 0; 454 | // Get size of buffer needed 455 | GetUserObjectInformation(currentWindowStation, OBJECTNAME, NULL, NULL, &sizeNeeded); 456 | 457 | // Create buffer of correct size 458 | TCHAR *currentName = new TCHAR[sizeNeeded]; 459 | // Get name 460 | if (GetUserObjectInformation(currentWindowStation, OBJECTNAME, currentName, sizeNeeded, NULL)) 461 | currentNameString = currentName; 462 | 463 | delete[] currentName; 464 | 465 | CloseWindowStation(currentWindowStation); 466 | } 467 | 468 | return currentNameString; 469 | } 470 | 471 | // Switches process and display to indicated destkop 472 | bool switchTo(const wstring &newDesktop, const wstring &newWindowStation) 473 | { 474 | bool switchToWorked = false; 475 | 476 | // Gets handle to workstation/desktop to switch to 477 | HWINSTA windowStationHandle = OpenWindowStation(newWindowStation.c_str(), FALSE, GENERIC_ALL); 478 | if (!SetProcessWindowStation(windowStationHandle)) 479 | return switchToWorked; 480 | else 481 | CloseWindowStation(windowStationHandle); 482 | 483 | HDESK newDesktopHandle = OpenDesktop(newDesktop.c_str(), 0, FALSE, GENERIC_ALL); 484 | 485 | // switchToWorked is true iff SwitchDesktop worked 486 | if (newDesktopHandle != NULL && SetThreadDesktop(newDesktopHandle) && SwitchDesktop(newDesktopHandle)) 487 | { 488 | CloseDesktop(newDesktopHandle); 489 | switchToWorked = true; 490 | } 491 | 492 | return switchToWorked; 493 | } 494 | 495 | // Sets and removes SE_DEBUG privilege 496 | // Code mostly straight from MSDN example 497 | BOOL SetPrivilege( 498 | LPCTSTR Privilege, // Privilege to enable/disable 499 | BOOL bEnablePrivilege // TRUE to enable. FALSE to disable 500 | ) 501 | { 502 | HANDLE hToken; 503 | OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, &hToken); 504 | 505 | TOKEN_PRIVILEGES tp = { 0 }; 506 | // Initialize everything to zero 507 | LUID luid; 508 | DWORD cb = sizeof(TOKEN_PRIVILEGES); 509 | if (!LookupPrivilegeValue(NULL, Privilege, &luid)) 510 | return FALSE; 511 | tp.PrivilegeCount = 1; 512 | tp.Privileges[0].Luid = luid; 513 | if (bEnablePrivilege) { 514 | tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 515 | } 516 | else { 517 | tp.Privileges[0].Attributes = 0; 518 | } 519 | AdjustTokenPrivileges(hToken, FALSE, &tp, cb, NULL, NULL); 520 | 521 | CloseHandle(hToken); 522 | 523 | if (GetLastError() != ERROR_SUCCESS) 524 | return FALSE; 525 | 526 | return TRUE; 527 | } 528 | -------------------------------------------------------------------------------- /Source/Common/Sandbox.h: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | #ifndef SANDBOX_H 29 | #define SANDBOX_H 30 | 31 | // Requires unicode 32 | #ifndef UNICODE 33 | #define UNICODE 34 | #endif 35 | #ifndef _UNICODE 36 | #define _UNICODE 37 | #endif 38 | 39 | #include 40 | #include 41 | #include 42 | #include 43 | 44 | #include 45 | #include 46 | #include 47 | 48 | const std::wstring SANDBOX = L"SandboxedDesktop"; 49 | const std::wstring MAIN = L"Default"; 50 | const std::wstring ADMIN = L"AdminOnlyDesktop"; 51 | const std::wstring WINDOWSTATIONMAIN = L"WinSta0"; 52 | const std::wstring CONSOLEAPP = L"Console.exe"; 53 | const std::wstring KEEPALIVE = L"KeepAlive.exe"; 54 | const std::wstring SETTINGSFILE = L"settings.ini"; 55 | 56 | bool getSettings(std::wstring &mainUser, std::wstring &sandboxUser, std::wstring &fileManager); 57 | 58 | bool createDACL(SECURITY_ATTRIBUTES *newDACL); 59 | bool createDACL(const std::wstring &userToAllow, SECURITY_ATTRIBUTES *denyDACL, const std::wstring &userToDeny, bool isDesktop = false); 60 | bool setDACL(SECURITY_ATTRIBUTES newDACL, HANDLE objectHandle, SE_OBJECT_TYPE objectType); 61 | bool setDefaultDACL(SECURITY_ATTRIBUTES newDACL, HANDLE &tokenHandle); 62 | bool usernameToSIDString(const std::wstring &username, std::wstring &userSIDString); 63 | 64 | bool keyboardEchoOff(); 65 | bool getCredentials(const std::wstring &user, std::wstring &userCreds); 66 | 67 | bool launchProcessOnDesktop(std::wstring process, std::wstring desktop, bool resume); 68 | bool launchFileManager(const std::wstring &mainUser, const std::wstring &sandboxUser, const std::wstring &fileManager, const std::wstring &desktop, bool isExplorer); 69 | 70 | bool opener(const std::wstring &sandboxD, SECURITY_ATTRIBUTES* denyDACL, HDESK &createSandbox); 71 | bool opener(const std::wstring &sandboxD, SECURITY_ATTRIBUTES* denyDACL, HWINSTA &createSandbox); // Not currently used, provided for potential future use 72 | 73 | std::wstring currentDesktopName(); 74 | std::wstring currentWindowStationName(); // Not currently used, included for potential future use 75 | bool switchTo(const std::wstring &newDesktop, const std::wstring &newWindowStation = WINDOWSTATIONMAIN); 76 | 77 | BOOL SetPrivilege(LPCTSTR Privilege, BOOL bEnablePrivilege); 78 | 79 | #endif 80 | -------------------------------------------------------------------------------- /Source/Console/Console.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | 29 | #ifndef WIN32_LEAN_AND_MEAN 30 | #define WIN32_LEAN_AND_MEAN 31 | #endif 32 | 33 | // Using std MIN and MAX definitions rather than windows.h ones 34 | #ifndef NOMINMAX 35 | #define NOMINMAX 36 | #endif 37 | 38 | #include "Sandbox.h" 39 | using namespace std; 40 | 41 | // Returns 0 if sandbox created successfully 42 | // Returns 1 if sandbox creation failed 43 | int wmain() 44 | { 45 | bool sandboxFail = true; 46 | 47 | wstring userMain, userSandbox, fileManagerPath; 48 | // Reads in settings information from file 49 | // No point in continuing without usable settings 50 | if (!getSettings(userMain, userSandbox, fileManagerPath)) 51 | return sandboxFail; 52 | 53 | SECURITY_ATTRIBUTES defaultDACL, sandboxDACL; 54 | // SECURITY_ATTRIBUTES WinSta0DACL; // Code to set window station DACLs left in for potential future use 55 | // Creates custom DACL 56 | // Sets owner, denies, and allows 57 | // Sandbox relies on DACLs, no point in continuing if they're not usable 58 | if (!createDACL(userMain, &defaultDACL, userSandbox, true) 59 | || !createDACL(userSandbox, &sandboxDACL, userMain, true)) 60 | // || !createDACL(userMain, &WinSta0DACL, userSandbox)) 61 | return sandboxFail; 62 | 63 | HDESK defaultHandle = NULL, sandboxHandle = NULL; 64 | // HWINSTA WinSta0Handle = NULL; 65 | // Creates desktop with specified DACL 66 | // If desktop already exists, gets handle for desktop 67 | // Desktop handles needed to access them, no point in continuing without handles 68 | if (!opener(MAIN, &defaultDACL, defaultHandle) 69 | || !opener(SANDBOX, &sandboxDACL, sandboxHandle)) 70 | // || !opener(WINDOWSTATIONMAIN, &WinSta0DACL, WinSta0Handle)) 71 | return sandboxFail; 72 | 73 | // Need more power to set DACL for window station 74 | // SetPrivilege(SE_DEBUG_NAME, TRUE); 75 | 76 | // Sets DACL in case objects already existed 77 | // If either failed, can't be sure desktops have secure settings 78 | // Sets DACL denying main user, makes DACL propigate to children 79 | // Sets DACL for explorer.exe on main desktop denying sandbox user 80 | if (!setDACL(defaultDACL, defaultHandle, SE_WINDOW_OBJECT) 81 | || !setDACL(sandboxDACL, sandboxHandle, SE_WINDOW_OBJECT)) 82 | // || !setDACL(WinSta0DACL, WinSta0Handle, SE_WINDOW_OBJECT)) 83 | return sandboxFail; 84 | 85 | // Revert privilege 86 | // SetPrivilege(SE_DEBUG_NAME, FALSE); 87 | 88 | // Clean up no longer needed data 89 | // Use LocalFree to free the returned buffer created by 90 | // ConvertStringSecurityDescriptorToSecurityDescriptor() 91 | // on successful completion of createDACL() 92 | LocalFree(defaultDACL.lpSecurityDescriptor); 93 | LocalFree(sandboxDACL.lpSecurityDescriptor); 94 | // LocalFree(WinSta0DACL.lpSecurityDescriptor); 95 | 96 | // Don't echo password back 97 | if (!keyboardEchoOff()) 98 | { 99 | switchTo(MAIN); 100 | return sandboxFail; 101 | } 102 | 103 | // Launch file manager on main desktop with default DACL 104 | // then jump to sandboxed desktop to launch sandboxed file manager 105 | if (launchFileManager(userMain, userSandbox, fileManagerPath, MAIN, true) 106 | && launchFileManager(userSandbox, userMain, fileManagerPath, SANDBOX, false)) 107 | { 108 | switchTo(ADMIN); 109 | wcout << L"Sandbox created successfully." << L"\n\n" 110 | << L"Press Enter to exit: "; 111 | cin.ignore(numeric_limits::max(), L'\n'); 112 | sandboxFail = false; 113 | } 114 | 115 | // End by going back home 116 | switchTo(MAIN); 117 | 118 | // Handles not needed 119 | CloseDesktop(defaultHandle); 120 | CloseDesktop(sandboxHandle); 121 | // CloseWindowStation(WinSta0Handle); 122 | 123 | return sandboxFail; 124 | } 125 | -------------------------------------------------------------------------------- /Source/Console/Console.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | {67B60B48-0BB3-448D-9708-0FB80F60430B} 19 | Console 20 | 21 | 22 | 23 | Application 24 | true 25 | v120 26 | MultiByte 27 | 28 | 29 | Application 30 | false 31 | v120 32 | true 33 | MultiByte 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | Level3 49 | Disabled 50 | true 51 | 52 | 53 | true 54 | 55 | 56 | 57 | 58 | Level3 59 | MaxSpeed 60 | true 61 | true 62 | true 63 | C:\Users\Josh\Documents\Visual Studio 2013\Projects\ProtectedDesktops\Common;%(AdditionalIncludeDirectories) 64 | MultiThreaded 65 | 66 | 67 | true 68 | true 69 | true 70 | false 71 | RequireAdministrator 72 | 73 | 74 | 75 | 76 | 77 | -------------------------------------------------------------------------------- /Source/Console/Console.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | Source Files 23 | 24 | 25 | -------------------------------------------------------------------------------- /Source/DesktopSwitcher/DesktopSwitcher.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | 29 | #ifndef WIN32_LEAN_AND_MEAN 30 | #define WIN32_LEAN_AND_MEAN 31 | #endif 32 | 33 | // Using std MIN and MAX definitions rather than windows.h ones 34 | #ifndef NOMINMAX 35 | #define NOMINMAX 36 | #endif 37 | 38 | #include "Sandbox.h" 39 | using namespace std; 40 | 41 | int main() 42 | { 43 | wstring currentDesktop = currentDesktopName(); 44 | 45 | // If current desktop is main, switch to sandboxed desktop 46 | if (currentDesktop == MAIN) 47 | switchTo(SANDBOX); 48 | else 49 | switchTo(MAIN); 50 | 51 | return 0; 52 | } 53 | -------------------------------------------------------------------------------- /Source/DesktopSwitcher/DesktopSwitcher.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | 14 | {5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547} 15 | DesktopSwitcher 16 | 17 | 18 | 19 | Application 20 | true 21 | v120 22 | MultiByte 23 | 24 | 25 | Application 26 | false 27 | v120 28 | true 29 | MultiByte 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | Level3 45 | Disabled 46 | true 47 | 48 | 49 | true 50 | 51 | 52 | 53 | 54 | Level3 55 | MaxSpeed 56 | true 57 | true 58 | true 59 | C:\Users\Josh\Documents\Visual Studio 2013\Projects\ProtectedDesktops\Common;%(AdditionalIncludeDirectories) 60 | MultiThreaded 61 | 62 | 63 | true 64 | true 65 | true 66 | false 67 | RequireAdministrator 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | -------------------------------------------------------------------------------- /Source/DesktopSwitcher/DesktopSwitcher.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | Source Files 23 | 24 | 25 | -------------------------------------------------------------------------------- /Source/KeepAlive/KeepAlive.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | #ifndef WIN32_LEAN_AND_MEAN 29 | #define WIN32_LEAN_AND_MEAN 30 | #endif 31 | 32 | // Using std MIN and MAX definitions rather than windows.h ones 33 | #ifndef NOMINMAX 34 | #define NOMINMAX 35 | #endif 36 | 37 | #include "Sandbox.h" 38 | using namespace std; 39 | 40 | // Just here to keep a desktop alive or get a token from 41 | int wmain() 42 | { 43 | 44 | cout << "Desktop set. Press any key to continue: "; 45 | cin.get(); 46 | 47 | return 0; 48 | } 49 | -------------------------------------------------------------------------------- /Source/KeepAlive/KeepAlive.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | 14 | {949E44D1-8F8F-4458-B6C3-B67DD40E0DD9} 15 | KeepAlive 16 | 17 | 18 | 19 | Application 20 | true 21 | v120 22 | MultiByte 23 | 24 | 25 | Application 26 | false 27 | v120 28 | true 29 | MultiByte 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | Level3 45 | Disabled 46 | true 47 | 48 | 49 | true 50 | 51 | 52 | 53 | 54 | Level3 55 | MaxSpeed 56 | true 57 | true 58 | true 59 | C:\Users\Josh\Documents\Visual Studio 2013\Projects\ProtectedDesktops\Common 60 | MultiThreaded 61 | 62 | 63 | true 64 | true 65 | true 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | -------------------------------------------------------------------------------- /Source/KeepAlive/KeepAlive.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | -------------------------------------------------------------------------------- /Source/ProtectedDesktops.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | 29 | #ifndef WIN32_LEAN_AND_MEAN 30 | #define WIN32_LEAN_AND_MEAN 31 | #endif 32 | 33 | #include "Sandbox.h" 34 | using namespace std; 35 | 36 | // Returns 0 if sandbox created successfully 37 | // Returns 1 if sandbox creation failed 38 | int wmain() 39 | { 40 | bool sandboxFail = true; 41 | 42 | SECURITY_ATTRIBUTES adminOnlyDACL; 43 | // Creates custom DACL 44 | // Sets owner, denies, and allows 45 | // Sandbox relies on DACLs, no point in continuing if they're not usable 46 | if (!createDACL(&adminOnlyDACL)) 47 | return sandboxFail; 48 | 49 | HDESK adminOnlyHandle = NULL; 50 | // Creates desktop with specified DACL 51 | // If desktop already exists, gets handle for desktop 52 | // Desktop handles needed to access them, no point in continuing without handles 53 | if (!opener(ADMIN, &adminOnlyDACL, adminOnlyHandle)) 54 | return sandboxFail; 55 | 56 | // Sets DACL in case objects already existed 57 | // If either failed, can't be sure desktops have secure settings 58 | // Sets DACL denying main user, makes DACL propigate to children 59 | // Sets DACL for explorer.exe on main desktop denying sandbox user 60 | if (!setDACL(adminOnlyDACL, adminOnlyHandle, SE_WINDOW_OBJECT)) 61 | return sandboxFail; 62 | 63 | // Clean up no longer needed data 64 | // Use LocalFree to free the returned buffer created by 65 | // ConvertStringSecurityDescriptorToSecurityDescriptor() 66 | // on successful completion of createDACL() 67 | LocalFree(adminOnlyDACL.lpSecurityDescriptor); 68 | 69 | cout << "Working..." << endl; 70 | 71 | // Launch next part 72 | if (launchProcessOnDesktop(CONSOLEAPP, ADMIN, true)) 73 | sandboxFail = false; 74 | 75 | // Handles not needed 76 | CloseDesktop(adminOnlyHandle); 77 | 78 | return sandboxFail; 79 | } 80 | -------------------------------------------------------------------------------- /Source/ProtectedDesktops.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 2013 4 | VisualStudioVersion = 12.0.31101.0 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ProtectedDesktops", "ProtectedDesktops.vcxproj", "{307BB0D9-4FFD-45B9-B9F9-C84743B9F12E}" 7 | EndProject 8 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "KeepAlive", "KeepAlive\KeepAlive.vcxproj", "{949E44D1-8F8F-4458-B6C3-B67DD40E0DD9}" 9 | EndProject 10 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Console", "Console\Console.vcxproj", "{67B60B48-0BB3-448D-9708-0FB80F60430B}" 11 | EndProject 12 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "DesktopSwitcher", "DesktopSwitcher\DesktopSwitcher.vcxproj", "{5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547}" 13 | EndProject 14 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RunMe", "RunMe\RunMe.vcxproj", "{341FDF18-5101-4BE7-BEC6-9D27A3D556F0}" 15 | EndProject 16 | Global 17 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 18 | Debug|Win32 = Debug|Win32 19 | Release|Win32 = Release|Win32 20 | EndGlobalSection 21 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 22 | {307BB0D9-4FFD-45B9-B9F9-C84743B9F12E}.Debug|Win32.ActiveCfg = Debug|Win32 23 | {307BB0D9-4FFD-45B9-B9F9-C84743B9F12E}.Debug|Win32.Build.0 = Debug|Win32 24 | {307BB0D9-4FFD-45B9-B9F9-C84743B9F12E}.Release|Win32.ActiveCfg = Release|Win32 25 | {307BB0D9-4FFD-45B9-B9F9-C84743B9F12E}.Release|Win32.Build.0 = Release|Win32 26 | {949E44D1-8F8F-4458-B6C3-B67DD40E0DD9}.Debug|Win32.ActiveCfg = Debug|Win32 27 | {949E44D1-8F8F-4458-B6C3-B67DD40E0DD9}.Debug|Win32.Build.0 = Debug|Win32 28 | {949E44D1-8F8F-4458-B6C3-B67DD40E0DD9}.Release|Win32.ActiveCfg = Release|Win32 29 | {949E44D1-8F8F-4458-B6C3-B67DD40E0DD9}.Release|Win32.Build.0 = Release|Win32 30 | {67B60B48-0BB3-448D-9708-0FB80F60430B}.Debug|Win32.ActiveCfg = Debug|Win32 31 | {67B60B48-0BB3-448D-9708-0FB80F60430B}.Debug|Win32.Build.0 = Debug|Win32 32 | {67B60B48-0BB3-448D-9708-0FB80F60430B}.Release|Win32.ActiveCfg = Release|Win32 33 | {67B60B48-0BB3-448D-9708-0FB80F60430B}.Release|Win32.Build.0 = Release|Win32 34 | {5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547}.Debug|Win32.ActiveCfg = Debug|Win32 35 | {5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547}.Debug|Win32.Build.0 = Debug|Win32 36 | {5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547}.Release|Win32.ActiveCfg = Release|Win32 37 | {5A45FEE3-53D0-4CA9-8C6F-7AC5CA20E547}.Release|Win32.Build.0 = Release|Win32 38 | {341FDF18-5101-4BE7-BEC6-9D27A3D556F0}.Debug|Win32.ActiveCfg = Debug|Win32 39 | {341FDF18-5101-4BE7-BEC6-9D27A3D556F0}.Debug|Win32.Build.0 = Debug|Win32 40 | {341FDF18-5101-4BE7-BEC6-9D27A3D556F0}.Release|Win32.ActiveCfg = Release|Win32 41 | {341FDF18-5101-4BE7-BEC6-9D27A3D556F0}.Release|Win32.Build.0 = Release|Win32 42 | EndGlobalSection 43 | GlobalSection(SolutionProperties) = preSolution 44 | HideSolutionNode = FALSE 45 | EndGlobalSection 46 | EndGlobal 47 | -------------------------------------------------------------------------------- /Source/ProtectedDesktops.v12.suo: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/Source/ProtectedDesktops.v12.suo -------------------------------------------------------------------------------- /Source/ProtectedDesktops.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | 14 | {307BB0D9-4FFD-45B9-B9F9-C84743B9F12E} 15 | ProtectedDesktops 16 | 17 | 18 | 19 | Application 20 | true 21 | v120 22 | MultiByte 23 | 24 | 25 | Application 26 | false 27 | v120 28 | true 29 | MultiByte 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | Level3 45 | Disabled 46 | true 47 | 48 | 49 | true 50 | 51 | 52 | 53 | 54 | Level3 55 | MaxSpeed 56 | true 57 | true 58 | true 59 | C:\Users\Josh\Documents\Visual Studio 2013\Projects\ProtectedDesktops\Common 60 | MultiThreaded 61 | 62 | 63 | true 64 | true 65 | true 66 | false 67 | RequireAdministrator 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | -------------------------------------------------------------------------------- /Source/ProtectedDesktops.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | Source Files 23 | 24 | 25 | 26 | 27 | Header Files 28 | 29 | 30 | -------------------------------------------------------------------------------- /Source/RunMe/RunMe.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | ProtectedDesktops: 3 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 4 | 5 | This program was written as part of an undergraduate research project 6 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 7 | 8 | Copyright 2016 Joshua DuFault 9 | 10 | 11 | This file is part of ProtectedDesktops. 12 | 13 | ProtectedDesktops is free software: you can redistribute it and/or modify 14 | it under the terms of the GNU General Public License as published by 15 | the Free Software Foundation, either version 3 of the License, or 16 | (at your option) any later version. 17 | 18 | ProtectedDesktops is distributed in the hope that it will be useful, 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | GNU General Public License for more details. 22 | 23 | You should have received a copy of the GNU General Public License 24 | along with ProtectedDesktops. If not, see . 25 | 26 | */ 27 | 28 | #ifndef WIN32_LEAN_AND_MEAN 29 | #define WIN32_LEAN_AND_MEAN 30 | #endif 31 | 32 | // Using std MIN and MAX definitions rather than windows.h ones 33 | #ifndef NOMINMAX 34 | #define NOMINMAX 35 | #endif 36 | 37 | #include "Sandbox.h" 38 | using namespace std; 39 | 40 | 41 | // Seperate launcher is a workaround in Windows 8 & 10 42 | // Launching console program creates conhost.exe as a child process which prevents SetThreadDesktop() from working 43 | // Using a launcher keeps conhost.exe attached to the launcher 44 | int wmain() 45 | { 46 | PROCESS_INFORMATION processInfo = { 0 }; 47 | STARTUPINFOW processSettings = { 0 }; 48 | processSettings.cb = sizeof(STARTUPINFOW); 49 | 50 | int choice = 0; 51 | 52 | cout << "Protected Desktops: A Sandboxing Program" << endl; 53 | 54 | do 55 | { 56 | cout << '\n' 57 | << "Pick an option:" << '\n' 58 | << "1: Create Sandbox" << '\n' 59 | << "2: Switch desktops" << '\n' 60 | << "3: Close Sandbox (forcefully closes any open programs)" << '\n' 61 | << "4: Exit" << '\n' 62 | << "Selection: " 63 | << flush; 64 | 65 | cin >> choice; 66 | 67 | if (cin.fail()) 68 | { 69 | cin.clear(); 70 | choice = 0; 71 | } 72 | 73 | cin.ignore(numeric_limits::max(), L'\n'); 74 | 75 | wstring process; 76 | if (choice == 1) 77 | process = L"ProtectedDesktops.exe"; 78 | else if (choice == 2) 79 | process = L"DesktopSwitcher.exe"; 80 | else if (choice == 3) 81 | process = L"CloseSandbox.bat"; 82 | else if (choice == 0 || choice == 4) 83 | continue; 84 | 85 | 86 | if (CreateProcess(process.c_str(), NULL, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &processSettings, &processInfo)) 87 | { 88 | cout << "Working..." << endl; 89 | WaitForSingleObject(processInfo.hProcess, 60000); 90 | } 91 | else 92 | cout << '\n' << "Error. Try again." << '\n'; 93 | 94 | } while (choice != 4); 95 | 96 | return 0; 97 | } 98 | -------------------------------------------------------------------------------- /Source/RunMe/RunMe.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | 14 | {341FDF18-5101-4BE7-BEC6-9D27A3D556F0} 15 | RunMe 16 | 17 | 18 | 19 | Application 20 | true 21 | v120 22 | MultiByte 23 | 24 | 25 | Application 26 | false 27 | v120 28 | true 29 | MultiByte 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | Level3 45 | Disabled 46 | true 47 | 48 | 49 | true 50 | 51 | 52 | 53 | 54 | Level3 55 | MaxSpeed 56 | true 57 | true 58 | true 59 | C:\Users\Josh\Documents\Visual Studio 2013\Projects\ProtectedDesktops\Common;%(AdditionalIncludeDirectories) 60 | MultiThreaded 61 | 62 | 63 | true 64 | true 65 | true 66 | RequireAdministrator 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | -------------------------------------------------------------------------------- /Source/RunMe/RunMe.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | -------------------------------------------------------------------------------- /Windows8&10/ReadMe.txt: -------------------------------------------------------------------------------- 1 | ProtectedDesktops: 2 | A program that uses native Windows features to create a fully sandboxed environment on Windows. 3 | (Special instructions for Windows 8 & 10) 4 | 5 | 6 | This program was written as part of an undergraduate research project 7 | presented at the Honors Transfer Council of California, 26 Mar. 2016. 8 | 9 | 10 | Copyright 2016 Joshua DuFault 11 | 12 | Contact: Josh.DuFault@gmail.com 13 | 14 | 15 | Version 0.2 16 | 17 | This program is in beta. It has been tested on Windows 7 x64, Windows 8 x64, and Windows 10 x64. 18 | 19 | 20 | 21 | This program is free software: you can redistribute it and/or modify 22 | it under the terms of the GNU General Public License as published by 23 | the Free Software Foundation, either version 3 of the License, or 24 | (at your option) any later version. 25 | 26 | This program is distributed in the hope that it will be useful, 27 | but WITHOUT ANY WARRANTY; without even the implied warranty of 28 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 29 | GNU General Public License for more details. 30 | 31 | You should have received a copy of the GNU General Public License 32 | along with ProtectedDesktops. If not, see . 33 | 34 | 35 | 36 | Additional Files: 37 | 38 | 39 | RunMe.bat 40 | 41 | RunMe.exe 42 | 43 | 44 | 45 | Directions: 46 | 47 | 48 | 1. To create local user accounts: 49 | 50 | Start button -> Settings -> Accounts -> Family & other users -> Add someone else to this PC -> 51 | I don't have this person's sign-in information -> Add a user without a Microsoft account 52 | 53 | 54 | 2. To change the main user to a standard user: 55 | 56 | Log in from new admin account to change the main to standard user 57 | 58 | Need to create shortcut 59 | Set to run as admin 60 | 61 | 62 | 3. Copy both files into the ProtectedDesktops folder. 63 | 64 | 65 | 4. Right click on RunMe.bat and select "Run as administrator." 66 | 67 | 68 | 5. On the new console window that opens, type RunMe and hit Enter. 69 | 70 | 71 | 6. Use the included launcher program to operate the sandbox. 72 | 73 | 74 | 75 | Description: 76 | 77 | In testing, the SetThreadDesktop() function failed consistently on Windows 10 and was unreliable on Windows 8 even though permissions are correct and the thread has not created any windows or hooks. This appears to be related to how conhost.exe is used on the newer operating systems. Conhost.exe launches as a child process to all console processes and handles GUI features. 78 | 79 | This solution starts an elevated command prompt which then has conhost.exe attached to itself. A launcher program used at the command prompt starts the sandbox. 80 | 81 | If anyone has another solution to this problem, please let me know. 82 | 83 | -------------------------------------------------------------------------------- /Windows8&10/RunMe.bat: -------------------------------------------------------------------------------- 1 | start cmd /k cd %~dp0 2 | -------------------------------------------------------------------------------- /Windows8&10/RunMe.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joshduf/ProtectedDesktops/9c7c9aa36ed2cc3042bd3eecd57bf8e47228d396/Windows8&10/RunMe.exe -------------------------------------------------------------------------------- /settings.ini: -------------------------------------------------------------------------------- 1 | Josh 2 | Sandbox 3 | C:\Program Files\Explorer++\Explorer++.exe 4 | --------------------------------------------------------------------------------