mvt/mvt/android/artifacts/processes.py
2023-09-09 17:55:27 +02:00

71 lines
2.1 KiB
Python

# Mobile Verification Toolkit (MVT)
# Copyright (c) 2021-2023 The MVT Authors.
# Use of this software is governed by the MVT License 1.1 that can be found at
# https://license.mvt.re/1.1/
from .artifact import AndroidArtifact
class Processes(AndroidArtifact):
def parse(self, entry: str) -> None:
for line in entry.split("\n")[1:]:
proc = line.split()
# Skip empty lines
if len(proc) == 0:
continue
# 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 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)