Android-Terminal-Emulator – 终端模拟器

GitHub – Android-Terminal-Emulator
See Building for build instructions.

ConnectBot – 运行在 Android 中的 SSH 客户端

ConnectBot – Wikipedia
connectbot/connectbot: ConnectBot is the first SSH client for Android.

DroidWall – 防火墙

rodrigozr/droidwall: Automatically exported from code.google.com/p/droidwall
Google Code Archive – Long-term storage for Google Code Project Hosting.

VirusTotal – 恶意软件检测（在线工具）

VirusTotal
VirusTotal Mobile – Apps on Google Play

Andrototal – 恶意软件检测（在线工具）

http://andrototal.org/

SandDroid – 恶意软件检测（在线工具）

http://sanddroid.xjtu.edu.cn/

参考文献

Top 7 Online Android APK Malware analyzers – FREE – Yeah Hub
11 Mobile App Scanner to Find Security Vulnerabilities – Geekflare