justapk — Download Android APKs by package name (6 sources, ...

[carlospolop]

🤖 Automated Content Update

This PR was automatically generated by the HackTricks News Bot based on a technical blog post.

📝 Source Information

• Blog URL: https://github.com/TheQmaks/justapk
• Blog Title: justapk — Download Android APKs by package name (6 sources, automatic fallback) CLI + Python API
• Suggested Section: Mobile Pentesting -> Android Applications Pentesting (tooling / APK acquisition & analysis) OR Generic Methodologies & Resources -> External Recon Methodology (artifact acquisition) with a subsection on TLS fingerprint impersonation for scraping

🎯 Content Summary

What it is: justapk is a Python 3.11+ CLI tool and Python library that downloads Android APKs by package name with automatic multi-source fallback across 6 providers. It tries sources in a fixed order and falls back when one fails.

Why it exists: Single-source APK downloaders often break due to provider API/HTML changes, downtime, or bot protections (e.g., Cloudflare). justapk aims to be resilient by mixing APIs, scraping, and mobile-API emulation.

Install: pip install justapk (requires Python...

🔧 Technical Details

Multi-source fallback: Use a deterministic provider chain for the same artifact and automatically retry the next provider on errors/blocks/layout changes to keep automation resilient.

TLS fingerprint impersonation for scraping: Use an HTTP stack that can impersonate real-client TLS handshakes (e.g., via curl_cffi) to reduce bot-detection when interacting with protected sites.

Split/XAPK repack workflow: Merge split APK components into a single installable APK and sign it (e.g., with a debug key) for testing/analysis, noting that signature/provenance will not match the original publisher.

🤖 Agent Actions

Summary:

• Added a dedicated subsection on automated multi-source APK acquisition with justapk, covering fallback source chain, TLS fingerprint impersonation, CLI usage, and split/XAPK conversion caveats.
• Noted pipeline-friendly JSON/stderr behavior and debug-key re-signing considerations for analysis workflows.
• Added justapk project reference to the Android pentesting references list.

Files modified:

• src/mobile-pentesting/android-app-pentesting/README.md

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This PR was automatically created by the HackTricks Feed Bot. Please review the changes carefully before merging.

[carlospolop]

🔗 Additional Context

Original Blog Post: https://github.com/TheQmaks/justapk

Content Categories: Based on the analysis, this content was categorized under "Mobile Pentesting -> Android Applications Pentesting (tooling / APK acquisition & analysis) OR Generic Methodologies & Resources -> External Recon Methodology (artifact acquisition) with a subsection on TLS fingerprint impersonation for scraping".

Repository Maintenance:

• MD Files Formatting: 948 files processed

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Bot Version: HackTricks News Bot v1.0