mirror of https://github.com/mvt-project/mvt.git
83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
# Mobile Verification Toolkit (MVT)
|
|
# Copyright (c) 2021 The MVT Project 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 mvt.common.utils import convert_mactime_to_unix, convert_timestamp_to_iso
|
|
|
|
from ..base import IOSExtraction
|
|
|
|
SHUTDOWN_LOG_PATH = [
|
|
"private/var/db/diagnostics/shutdown.log",
|
|
]
|
|
|
|
|
|
class ShutdownLog(IOSExtraction):
|
|
"""This module extracts processes information from the shutdown log file."""
|
|
|
|
def __init__(self, file_path=None, base_folder=None, output_folder=None,
|
|
fast_mode=False, log=None, results=[]):
|
|
super().__init__(file_path=file_path, base_folder=base_folder,
|
|
output_folder=output_folder, fast_mode=fast_mode,
|
|
log=log, results=results)
|
|
|
|
def serialize(self, record):
|
|
return {
|
|
"timestamp": record["isodate"],
|
|
"module": self.__class__.__name__,
|
|
"event": "shutdown",
|
|
"data": f"Client {record['client']} with PID {record['pid']} was running when the device was shut down",
|
|
}
|
|
|
|
def check_indicators(self):
|
|
if not self.indicators:
|
|
return
|
|
|
|
for result in self.results:
|
|
for ioc in self.indicators.ioc_processes:
|
|
parts = result["client"].split("/")
|
|
if ioc in parts:
|
|
self.log.warning("Found mention of a known malicious process \"%s\" in shutdown.log",
|
|
ioc)
|
|
self.detected.append(result)
|
|
|
|
def process_shutdownlog(self, content):
|
|
current_processes = []
|
|
for line in content.split("\n"):
|
|
line = line.strip()
|
|
|
|
if line.startswith("remaining client pid:"):
|
|
current_processes.append({
|
|
"pid": line[line.find("pid: ")+5:line.find(" (")],
|
|
"client": line[line.find("(")+1:line.find(")")],
|
|
})
|
|
elif line.startswith("SIGTERM: "):
|
|
try:
|
|
mac_timestamp = int(line[line.find("[")+1:line.find("]")])
|
|
except ValueError:
|
|
try:
|
|
start = line.find(" @")+2
|
|
mac_timestamp = int(line[start:start+10])
|
|
except Exception:
|
|
mac_timestamp = 0
|
|
|
|
timestamp = convert_mactime_to_unix(mac_timestamp, from_2001=False)
|
|
isodate = convert_timestamp_to_iso(timestamp)
|
|
|
|
for current_process in current_processes:
|
|
self.results.append({
|
|
"isodate": isodate,
|
|
"pid": current_process["pid"],
|
|
"client": current_process["client"],
|
|
})
|
|
|
|
current_processes = []
|
|
|
|
self.results = sorted(self.results, key=lambda entry: entry["isodate"])
|
|
|
|
def run(self):
|
|
self._find_ios_database(root_paths=SHUTDOWN_LOG_PATH)
|
|
self.log.info("Found shutdown log at path: %s", self.file_path)
|
|
with open(self.file_path, "r") as handle:
|
|
self.process_shutdownlog(handle.read())
|