The scrap-is-not-scrap (sins) experiment began out of a public school education in biology and dissatisfaction with genetic algorithms with their ability to do work.
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#! /usr/bin/env python3
from argparse import ArgumentParser
from datetime import datetime
from pathlib import Path
from random import randint
import binascii
import ctypes
import logging
import subprocess
import mmap
whoami_shell = b"\x6a\x3b\x58\x99\x48\xbb\x2f\x62\x69\x6e\x2f\x73\x68\x00\x53\x48\x89\xe7\x68\x2d\x63\x00\x00\x48\x89\xe6\x52\xe8\x10\x00\x00\x00\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x77\x68\x6f\x61\x6d\x69\x00\x56\x57\x48\x89\xe6\x0f\x05"
def example():
now = '{0:%Y%m%dT%H%M%S}'.format(datetime.utcnow())
parser = ArgumentParser(
description='position independent code (PIC) mutation experiment.')
parser.add_argument('-v', '--verbose', action='count')
parser.add_argument('-s', '--seed', default='seed',
help='path to PIC image.')
parser.add_argument('-o', '--output', help='path to results directory.')
args = parser.parse_args()
log_level = logging.INFO
log_format = logging.Formatter('%(message)s')
if args.verbose:
log_level = logging.DEBUG
log_format = logging.Formatter(
'%(levelname)s %(filename)s:%(lineno)d\n%(message)s\n')
logger = logging.getLogger('sins')
logger.setLevel(log_level)
stream_handler = logging.StreamHandler()
stream_handler.setLevel(log_level)
stream_handler.setFormatter(log_format)
logger.addHandler(stream_handler)
if args.output:
log_path = f'{args.output}/sins-{now}.log'
file_handler = logging.FileHandler(log_path)
file_handler.setLevel(log_level)
file_handler.setFormatter(log_format)
logger.addHandler(file_handler)
logger.info(whoami_shell)
shell_function(whoami_shell)()
def shell_function(shellcode: bytes):
exec_mem = mmap.mmap(
-1, len(shellcode),
prot=mmap.PROT_READ | mmap.PROT_WRITE | mmap.PROT_EXEC,
flags=mmap.MAP_ANONYMOUS | mmap.MAP_PRIVATE)
exec_mem.write(shellcode)
ctypes_buffer = ctypes.c_int.from_buffer(exec_mem)
function = ctypes.CFUNCTYPE(ctypes.c_int64)(
ctypes.addressof(ctypes_buffer))
function._avoid_gc_for_mmap = exec_mem
return function