reverse-engineering-android-malware-with-jadx

reverse-engineering-android-malware-with-jadx is a skill for Claude Code, Codex from adriannoes/awesome-agentic-ai. It costs 82 tokens per session (3,096 once invoked), scanned A, original, MIT.

A guide to examining malicious Android APK files with JADX, a tool that reconstructs readable Java or Kotlin code from an app package. It also inspects permissions, app components, native libraries, and runtime behavior.

In plain words
What is it for?
Use it to analyze spyware, banking trojans, SMS stealers, and adware; extract server addresses or configuration data; and investigate overlay attacks in an isolated emulator.
Why use it?
It helps investigators understand what suspicious apps collect, how they communicate, and which permissions or attack techniques they abuse.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to analyze spyware, banking trojans, SMS stealers, and adware; extract server addresses or configuration data; and investigate overlay attacks in an isolated emulator.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/adriannoes/awesome-agentic-ai/reverse-engineering-android-malware-with-jadx
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add adriannoes/awesome-agentic-ai --skill reverse-engineering-android-malware-with-jadx
Clone the repo
git clone --depth 1 https://github.com/adriannoes/awesome-agentic-ai

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for reverse-engineering-android-malware-with-jadx

README.md
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<a href="https://agentmods.dev/skills/adriannoes/awesome-agentic-ai/reverse-engineering-android-malware-with-jadx"><img src="https://agentmods.dev/badge/skills/adriannoes/awesome-agentic-ai/reverse-engineering-android-malware-with-jadx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,096 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00082 $0.03096
Opus 5 $0.00041 $0.01548
Sonnet 5 $0.00016 $0.00619
Haiku 4.5 $0.00008 $0.00310

Measured 8d ago against content hash 91eb61b48b08, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

reverse-engineering-android-malware-with-jadx scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/agent.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

cursor-claude-codex/skills/anthropic-cybersecurity-skills/skills/reverse-engineering-android-malware-with-jadx/SKILL.md · 362 lines

How it starts

The opening of the file, as written. The whole thing — 362 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reverse Engineering Android Malware with JADX

When to Use

  • A suspicious Android APK has been reported as malicious or flagged by mobile threat detection
  • Analyzing Android banking trojans, spyware, SMS stealers, or adware samples
  • Determining what data an app collects, where it sends it, and what permissions it abuses
  • Extracting C2 server addresses, encryption keys, and configuration data from Android malware
  • Understanding overlay attack mechanisms used by banking trojans

Do not use for analyzing obfuscated native (.so) libraries within APKs; use Ghidra or IDA for native ARM binary analysis.

Prerequisites

  • JADX 1.5+ installed (download from https://github.com/skylot/jadx/releases)
  • Android SDK with aapt2 and adb tools for APK inspection
  • apktool for full APK disassembly including smali code and resources
  • Python 3.8+ with androguard library for automated APK analysis
  • Frida for dynamic instrumentation (optional, for runtime analysis)
  • Isolated Android emulator (Genymotion or Android Studio AVD) without Google services

Workflow

Step 1: Extract APK Metadata and Permissions

Examine the APK structure and AndroidManifest.xml:

# Get APK basic info
aapt2 dump badging malware.apk

# Extract AndroidManifest.xml
apktool d malware.apk -o apk_extracted/ -f

# Analyze permissions with androguard
python3 << 'PYEOF'
from androguard.core.apk import APK

apk = APK("malware.apk")

print(f"Package:    {apk.get_package()}")
print(f"App Name:   {apk.get_app_name()}")
print(f"Version:    {apk.get_androidversion_name()}")
print(f"Min SDK:    {apk.get_min_sdk_version()}")
print(f"Target SDK: {apk.get_target_sdk_version()}")

# Dangerous permissions
dangerous_perms = {
    "android.permission.READ_SMS": "SMS theft",
    "android.permission.RECEIVE_SMS": "SMS interception",
    "android.permission.SEND_SMS": "Premium SMS fraud",
    "android.permission.READ_CONTACTS": "Contact harvesting",
    "android.permission.READ_CALL_LOG": "Call log theft",
    "android.permission.RECORD_AUDIO": "Audio surveillance",
    "android.permission.CAMERA": "Camera surveillance",
    "android.permission.ACCESS_FINE_LOCATION": "Location tracking",
    "android.permission.READ_PHONE_STATE": "Device fingerprinting",
    "android.permission.SYSTEM_ALERT_WINDOW": "Overlay attacks",
    "android.permission.BIND_ACCESSIBILITY_SERVICE": "Full device control",
    "android.permission.REQUEST_INSTALL_PACKAGES": "Sideloading apps",
    "android.permission.BIND_DEVICE_ADMIN": "Device admin abuse",
}

print("\nDangerous Permissions:")
for perm in apk.get_permissions():
    if perm in dangerous_perms:
        print(f"  [!] {perm}")
        print(f"      Risk: {dangerous_perms[perm]}")
    elif "android.permission" in perm:
        print(f"  [*] {perm}")

# Components
print("\nActivities:")
for act in apk.get_activities():
    print(f"  {act}")

print("\nServices:")
for svc in apk.get_services():
    print(f"  {svc}")

print("\nReceivers:")
for rcv in apk.get_receivers():
    print(f"  {rcv}")
PYEOF

Read the full file on GitHub · 362 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 362 lines · 82 tokens per session scan A 91eb61b48b08

Subscribe to this mod's changes

reverse-engineering-android-malware-with-jadx is a skill published in the GitHub repository adriannoes/awesome-agentic-ai (57 stars, last pushed 14d ago), licensed MIT. It adds 82 tokens to every session and 3,096 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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