Mars
59970a84a8
新增 MariBank/SeaBank PH Root 与 SHPSSDK bypass、riskToken 净化及 Up/Suncorp/ubank 消息 Hook；整理 reverse/ 脚本与 Frida 工具链，并补充当日工作说明文档。
101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""Dump JNI/native methods for sdkutils crypto + register-related classes."""
|
|
import re
|
|
import subprocess
|
|
import zipfile
|
|
from pathlib import Path
|
|
from typing import List
|
|
|
|
APK = Path(__file__).resolve().parent.parent / "apks" / "seabank_ph_base.apk"
|
|
DEXDUMP = Path(r"C:\Users\Administrator\AppData\Local\Android\Sdk\build-tools\37.0.0\dexdump.exe")
|
|
OUT = Path(__file__).resolve().parent.parent / "output" / "crypto_jni_targets.txt"
|
|
|
|
CLASS_PATTERNS = [
|
|
rb"Lcom/shopee/bke/lib/jni/[^;]{1,80};",
|
|
rb"Lcom/shopee/shpssdkbank/wvvvuwwu;",
|
|
rb"Lcom/shopee/shpssdkbank/uwuvuvvww/vvuuuuvvv;",
|
|
rb"Lcom/shopee/shpssdkbank/uwuvuvvww/[^;]{1,40};",
|
|
]
|
|
|
|
EXTRA_KEYWORDS = (
|
|
b"NativeEncrypt",
|
|
b"CharacterCrypto",
|
|
b"SecurityMain",
|
|
b"encrypt",
|
|
b"decrypt",
|
|
b"register",
|
|
)
|
|
|
|
|
|
def dump_class(out: str, target: str) -> List[str]:
|
|
lines: list[str] = []
|
|
cap = False
|
|
for line in out.splitlines():
|
|
if f"Class descriptor : '{target}'" in line:
|
|
cap = True
|
|
elif cap and line.startswith(" Class descriptor") and target not in line:
|
|
break
|
|
if cap:
|
|
lines.append(line)
|
|
return lines
|
|
|
|
|
|
def main() -> None:
|
|
with zipfile.ZipFile(str(APK)) as zf:
|
|
data = b"".join(zf.read(n) for n in zf.namelist() if n.endswith(".dex"))
|
|
|
|
classes: set[str] = set()
|
|
for pat in CLASS_PATTERNS:
|
|
for m in re.finditer(pat, data):
|
|
classes.add(m.group().decode()[1:-1].replace("/", "."))
|
|
|
|
for kw in EXTRA_KEYWORDS:
|
|
for m in re.finditer(rb"Lcom/[^;]{0,120};", data):
|
|
s = m.group()
|
|
if kw in s or kw in data[data.find(s) : data.find(s) + 4000]:
|
|
classes.add(s.decode()[1:-1].replace("/", "."))
|
|
|
|
# log tags -> classes from crash log
|
|
for tag in [
|
|
"com.shopee.bke.lib.jni.utils.f", # SoUtils
|
|
"com.shopee.bke.lib.jni.uwuwuwuw",
|
|
"com.shopee.bke.lib.jni.uvuvuvuv",
|
|
"com.shopee.bke.lib.jni.uvwwwwuv",
|
|
]:
|
|
classes.add(tag)
|
|
|
|
native_entries: List[str] = []
|
|
with zipfile.ZipFile(str(APK)) as zf:
|
|
for dex_name in zf.namelist():
|
|
if not dex_name.endswith(".dex"):
|
|
continue
|
|
dex = zf.read(dex_name)
|
|
hits = [c for c in classes if c.replace(".", "/") in dex.decode("latin1", errors="ignore")]
|
|
if not hits:
|
|
continue
|
|
tmp = Path(__file__).resolve().parent.parent / "tmp" / "tmp_crypto_jni.dex"
|
|
tmp.write_bytes(dex)
|
|
out = subprocess.check_output(
|
|
[str(DEXDUMP), "-d", str(tmp)], universal_newlines=True, errors="replace"
|
|
)
|
|
for cls in sorted(hits):
|
|
block = dump_class(out, "L" + cls.replace(".", "/") + ";")
|
|
if not block:
|
|
continue
|
|
native_entries.append(f"\n=== {dex_name} {cls} ===")
|
|
for line in block:
|
|
if any(
|
|
k in line
|
|
for k in ("NATIVE", "name :", "type :", "loadLibrary")
|
|
):
|
|
native_entries.append(line)
|
|
|
|
text = "\n".join(native_entries)
|
|
OUT.write_text(text, encoding="utf-8")
|
|
print(text)
|
|
print(f"\nwritten {OUT}")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|