Created
December 11, 2020 08:23
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Detect dynamic loading in Android application
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#!/usr/bin/env python3 | |
from pwn import * | |
import re | |
import argparse | |
def adb_shell_cmd(cmd: list, root: bool): | |
# Executes a given command. | |
context.device = adb.wait_for_device() | |
prepared_cmd = adb.process(cmd).recvall(1).decode('utf-8') | |
if root: | |
adb.root() | |
# If adb.root() does not work, add su -c to the command. | |
if not re.search('uid=0', adb.process(['id']).recvline().decode()): | |
prepared_cmd = adb.process(['su', '-c'] + cmd).recvall(1).decode('utf-8') | |
return prepared_cmd | |
def map_explorer(regex_to_search: str, pid: int): | |
# Searches proc/maps of an application for a regex expression. | |
return re.findall('(?='+regex_to_search+')(.*)(?=\r)', adb_shell_cmd(['cat', '/proc/{}/maps'.format(pid)], True)) | |
def main(): | |
parser = argparse.ArgumentParser(description='''Searches the proc/maps file of an application for a | |
/data/data/[...] path in order to detect dynamic loading''') | |
parser.add_argument('pid', type=int, help='Process ID of the suspected app.') | |
arguments = parser.parse_args() | |
result = map_explorer('/data/data', arguments.pid) | |
if result: | |
print('the following paths were found:') | |
for path in result: | |
print(path) | |
else: | |
print('No dynamic loading was detected.') | |
if __name__ == "__main__": | |
main() |
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