mvt/mvt/android/lookups/virustotal.py

97 lines
2.9 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/
import logging
import requests
from rich.console import Console
from rich.progress import track
from rich.table import Table
from rich.text import Text
log = logging.getLogger(__name__)
def get_virustotal_report(hashes):
apikey = "233f22e200ca5822bd91103043ccac138b910db79f29af5616a9afe8b6f215ad"
url = f"https://www.virustotal.com/partners/sysinternals/file-reports?apikey={apikey}"
items = []
for sha256 in hashes:
items.append({
"autostart_location": "",
"autostart_entry": "",
"hash": sha256,
"local_name": "",
"creation_datetime": "",
})
headers = {"User-Agent": "VirusTotal", "Content-Type": "application/json"}
res = requests.post(url, headers=headers, json=items)
if res.status_code == 200:
report = res.json()
return report["data"]
else:
log.error("Unexpected response from VirusTotal: %s", res.status_code)
return None
def virustotal_lookup(packages):
log.info("Looking up all extracted files on VirusTotal (www.virustotal.com)")
unique_hashes = []
for package in packages:
for file in package.get("files", []):
if file["sha256"] not in unique_hashes:
unique_hashes.append(file["sha256"])
total_unique_hashes = len(unique_hashes)
detections = {}
def virustotal_query(batch):
report = get_virustotal_report(batch)
if not report:
return
for entry in report:
if entry["hash"] not in detections and entry["found"] is True:
detections[entry["hash"]] = entry["detection_ratio"]
batch = []
for i in track(range(total_unique_hashes), description=f"Looking up {total_unique_hashes} files..."):
file_hash = unique_hashes[i]
batch.append(file_hash)
if len(batch) == 25:
virustotal_query(batch)
batch = []
if batch:
virustotal_query(batch)
table = Table(title="VirusTotal Packages Detections")
table.add_column("Package name")
table.add_column("File path")
table.add_column("Detections")
for package in packages:
for file in package.get("files", []):
row = [package["package_name"], file["path"]]
if file["sha256"] in detections:
detection = detections[file["sha256"]]
positives = detection.split("/")[0]
if int(positives) > 0:
row.append(Text(detection, "red bold"))
else:
row.append(detection)
else:
row.append("not found")
table.add_row(*row)
console = Console()
console.print(table)