command line support (partial) via PEB stomping

This update include support to passing command line parameters to unmanaged exe via PEB stomping.
This technique is not working with every executable since it depends on which functions are used to pass arguments.
Generally, to get a universally working technique would be required to hook GetCommandlineA GetCommandlineW __getmainargs and __wgetmainargs since PEB stomping won't cover all cases, more details here:
https://blog-30cm-tw.translate.goog/2020/08/windows-c-mainargc-argv.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=it&_x_tr_pto=wapp

However, during my testing I found that mimikatz and several go binaries are working just by doing PEB stomping.
On the other hand, cmdline passing via PEB stomping alone to mingw and VS compiled binaries won't likely work.
This commit is contained in:
naksyn
2023-07-27 06:44:29 -07:00
parent 63ebe1c4ba
commit db1893910c
160 changed files with 70537 additions and 42 deletions
+53
View File
@@ -0,0 +1,53 @@
import os
import sys
import logging
import inspect
options = {'active': False, 'cats': None}
# options = {'active': True, 'cats': ["HANDLE"]}
def get_stack_func_name(lvl):
info = inspect.stack()[lvl]
return info[0], info[3]
def do_dbgprint(msg, type=None):
if ("ALL" in options['cats']) or type.upper() in options['cats']:
frame, func = get_stack_func_name(2)
logger = logging.getLogger(frame.f_globals['__name__'] + ":" + func)
logger.debug(msg)
def do_nothing(*args, **kwargs):
return None
def parse_option(s):
if s[0] == "=":
s = s[1:]
if s:
cats = [x.upper().strip() for x in s.split('-')]
options['cats'] = cats
formt = 'DBG|%(name)s|%(message)s'
logging.basicConfig(format=formt, level=logging.DEBUG)
try:
if 'DBGPRINT' in os.environ:
parse_option(os.environ['DBGPRINT'])
dbgprint = do_dbgprint
elif any([opt.startswith("--DBGPRINT") for opt in sys.argv]):
dbgprint = do_dbgprint
option_str = [opt for opt in sys.argv if opt.startswith("--DBGPRINT")][0]
parse_option(option_str[len('--DBGPRINT'):])
elif options["active"]:
formt = 'DBG|%(name)s|%(message)s'
logging.basicConfig(format=formt, level=logging.DEBUG)
dbgprint = do_dbgprint
else:
dbgprint = do_nothing
except Exception as e:
dbgprint = do_nothing
print("dbgprint Error: {0}({1})".format(type(e), e))
x = type(e), e