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feature: xor'd payload

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Dobin
2024-02-11 12:51:12 +00:00
parent 0753290fe6
commit 504f0206c7
7 changed files with 49 additions and 31 deletions
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phases/ctoasm.py
+9 -7
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@@ -4,12 +4,13 @@ import os
import pprint
from observer import observer
from jinja2 import Template
from project import project
from project import project
from model import *
use_templates = True
def create_c_from_template():
plugin_allocator = ""
plugin_decoder = ""
@@ -18,8 +19,12 @@ def create_c_from_template():
with open("plugins/allocator/rwx_1.c", "r", encoding='utf-8') as file:
plugin_allocator = file.read()
with open("plugins/decoder/plain_1.c", "r", encoding='utf-8') as file:
plugin_decoder = file.read()
if project.decoder_style == DecoderStyle.PLAIN_1:
with open("plugins/decoder/plain_1.c", "r", encoding='utf-8') as file:
plugin_decoder = file.read()
elif project.decoder_style == DecoderStyle.XOR_1:
with open("plugins/decoder/xor_1.c", "r", encoding='utf-8') as file:
plugin_decoder = file.read()
with open("plugins/executor/direct_1.c", "r", encoding='utf-8') as file:
plugin_executor = file.read()
@@ -115,8 +120,6 @@ def make_c_to_asm(c_file, asm_file, payload_len, capabilities: ExeCapabilities):
shutil.move(asm_clean_file, asm_file)
asm["cleanup"] = file_readall_text(asm_file)
return asm
@@ -171,7 +174,7 @@ def fixup_asm_file(filename, payload_len, capabilities: ExeCapabilities):
for idx, line in enumerate(lines):
if "11223344" in lines[idx]:
print(" > Replace payload length at line: {}".format(idx))
lines[idx] = lines[idx].replace("11223344", str(payload_len+1))
lines[idx] = lines[idx].replace("11223344", str(payload_len))
break
# add label at end of code
@@ -179,7 +182,6 @@ def fixup_asm_file(filename, payload_len, capabilities: ExeCapabilities):
if lines[idx].startswith("END"):
print(" > Add end of code label at line: {}".format(idx))
lines.insert(idx-1, "shcstart:\r\n")
lines.insert(idx, "\tnop\r\n")
break
with open(filename, 'w') as asmfile: