Files
SuperMega/phases/assembler.py
T
2025-06-09 10:10:02 +02:00

49 lines
1.6 KiB
Python

import logging
from model import *
from config import config
from observer import observer
from pe.pehelper import *
from helper import *
logger = logging.getLogger("Assembler")
def asm_to_shellcode(asm_in: FilePath, build_exe: FilePath) -> bytes:
"""Takes ASM source file asm_in, compiles it into build_exe, extracts its code section and write into shellcode_out"""
logger.info("-[ Carrier: ASM to EXE".format())
logger.info(" Carrier: {} -> {}".format(asm_in, build_exe))
run_process_checkret([
config.get("path_ml64"),
asm_in,
"/link",
"/OUT:{}".format(build_exe),
"/entry:AlignRSP" # "/entry:main",
])
if not os.path.isfile(build_exe):
raise Exception("Compiling failed")
code = extract_code_from_exe_file(build_exe)
logging.info(" Carrier Size: {}".format(
len(code)
))
return code
def encode_payload(payload: bytes, decoder_style: str) -> bytes:
if decoder_style == "plain":
return bytes(payload)
elif decoder_style == "xor_1":
xor_key = config.xor_key
logger.debug(" XOR payload with key 0x{:X}".format(xor_key))
xored = bytes([byte ^ xor_key for byte in payload])
return bytes(xored)
elif decoder_style == "xor_2":
xor_key = config.xor_key2
logger.debug(" XOR2 payload with key {}".format(xor_key))
xored = bytearray(payload)
for i in range(len(xored)):
xored[i] ^= xor_key[i % 2]
return bytes(xored)
else:
raise Exception("Unknown decoder style")