# -*- coding: utf-8 -*- import re import zipfile from pathlib import Path APK = Path(__file__).resolve().parent.parent / "apks" / "maribank_sg_base.apk" with zipfile.ZipFile(str(APK)) as zf: data = b"".join(zf.read(n) for n in zf.namelist() if n.endswith(".dex")) for needle in [b"dfp is empty", b"getDfp", b"DfpManager", b"DeviceFingerprint"]: print("\n===", needle.decode(), "count=", data.count(needle)) idx = 0 for _ in range(5): idx = data.find(needle, idx) if idx < 0: break ctx = data[max(0, idx - 120) : idx + 200] for m in re.finditer(rb"Lcom/[^;\x00]{5,140};", ctx): print(" ", m.group().decode()[1:-1].replace("/", ".")) idx += len(needle)