mvt/mvt/android/modules/androidqf/processes.py
2023-02-08 20:18:16 +01:00

93 lines
2.8 KiB
Python

# Mobile Verification Toolkit (MVT)
# Copyright (c) 2021-2023 Claudio Guarnieri.
# Use of this software is governed by the MVT License 1.1 that can be found at
# https://license.mvt.re/1.1/
import logging
from typing import Optional
from .base import AndroidQFModule
class Processes(AndroidQFModule):
"""This module analyse running processes"""
def __init__(
self,
file_path: Optional[str] = None,
target_path: Optional[str] = None,
results_path: Optional[str] = None,
fast_mode: Optional[bool] = False,
log: logging.Logger = logging.getLogger(__name__),
results: Optional[list] = None
) -> None:
super().__init__(file_path=file_path, target_path=target_path,
results_path=results_path, fast_mode=fast_mode,
log=log, results=results)
def check_indicators(self) -> None:
if not self.indicators:
return
for result in self.results:
proc_name = result.get("proc_name", "")
if not proc_name:
continue
# Skipping this process because of false positives.
if result["proc_name"] == "gatekeeperd":
continue
ioc = self.indicators.check_app_id(proc_name)
if ioc:
result["matched_indicator"] = ioc
self.detected.append(result)
continue
ioc = self.indicators.check_process(proc_name)
if ioc:
result["matched_indicator"] = ioc
self.detected.append(result)
def _parse_ps(self, data):
for line in data.split("\n")[1:]:
proc = line.split()
# Sometimes WCHAN is empty.
if len(proc) == 8:
proc = proc[:5] + [''] + proc[5:]
# Sometimes there is the security label.
if proc[0].startswith("u:r"):
label = proc[0]
proc = proc[1:]
else:
label = ""
# Sometimes there is no WCHAN.
if len(proc) < 9:
proc = proc[:5] + [""] + proc[5:]
self.results.append({
"user": proc[0],
"pid": int(proc[1]),
"ppid": int(proc[2]),
"virtual_memory_size": int(proc[3]),
"resident_set_size": int(proc[4]),
"wchan": proc[5],
"aprocress": proc[6],
"stat": proc[7],
"proc_name": proc[8].strip("[]"),
"label": label,
})
def run(self) -> None:
ps_files = self._get_files_by_pattern("*/ps.txt")
if not ps_files:
return
with open(ps_files[0]) as handle:
self._parse_ps(handle.read())
self.log.info("Identified %d running processes", len(self.results))