Files
SuperMega/phases/assembler.py
T
2024-02-16 08:34:46 +00:00

57 lines
1.9 KiB
Python

import pefile
import pprint
import logging
from model import *
from helper import *
from config import config
from observer import observer
from project import project
from helper import *
from pehelper import *
logger = logging.getLogger("Assembler")
def asm_to_shellcode(asm_in: FilePath, build_exe: FilePath, shellcode_out: FilePath):
"""Takes ASM source file asm_in, compiles it into build_exe, extracts its code section and write into shellcode_out"""
logger.info("--[ Assemble to exe: {} -> {} -> {}".format(asm_in, build_exe, shellcode_out))
run_process_checkret([
config.get("path_ml64"),
asm_in,
"/link",
"/OUT:{}".format(build_exe),
"/entry:AlignRSP"
])
if not os.path.isfile(build_exe):
logger.error("Error")
return
code = extract_code_from_exe(build_exe)
with open(shellcode_out, 'wb') as f:
f.write(code)
return code
def merge_loader_payload(shellcode_in: FilePath, shellcode_out: FilePath, payload: FilePath, decoder_style: DecoderStyle):
logger.info("--[ Merge stager: {} + {} -> {}".format(
shellcode_in, project.payload, shellcode_out))
with open(shellcode_in, 'rb') as input1:
data_stager = input1.read()
with open(project.payload, 'rb') as input2:
data_payload = input2.read()
if project.decoder_style == DecoderStyle.PLAIN_1:
pass
elif project.decoder_style == DecoderStyle.XOR_1:
xor_key = 0x42
logger.info("---[ XOR payload with key 0x{:x}".format(xor_key))
data_payload = bytes([byte ^ xor_key for byte in data_payload])
logger.info("---[ Size: Stager: {} and Payload: {} Sum: {} ".format(
len(data_stager), len(data_payload), len(data_stager)+len(data_payload)))
with open(shellcode_out, 'wb') as output:
data = data_stager + data_payload
output.write(data)
observer.add_code("final_shellcode", data)