跳到正文
cccskills
免费在 GitHub 公开

reverse-engineering-binaries-with-ghidra

Uses Ghidra to disassemble and decompile a binary, navigate to key routines via imports and strings, annotate decompiled code, and run headless scripts to automate extraction of C2, crypto, and config. Activates for requests to reverse engineer with Ghidra, decompile a binary, or script Ghidra headless analysis.

中文简介正在准备中。当前显示原文说明。

查看安装方法

包含的文件(4)

  • SKILL.md3.5 KB
  • LICENSE340 B
  • references/api-reference.md1.2 KB
  • scripts/analyst.py2.4 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Reverse Engineering Binaries with Ghidra

When to Use

  • Static/dynamic triage has identified functionality that needs code-level understanding.
  • You need to reverse a C2 protocol, decryption routine, or custom obfuscation.
  • You want to extract hardcoded config (C2, keys, campaign IDs) from compiled code, or automate extraction across many samples via headless scripts.

Do not use Ghidra as a first step for unknown samples — triage statically and behaviorally first, and unpack before decompiling a packed binary.

Prerequisites

  • Ghidra 11.x with JDK 17+.
  • An isolated analysis host.
  • Familiarity with x86/x64 (or the target arch) and OS API conventions.
  • The sample unpacked (decompiling packed code wastes effort).

Safety & Handling

  • Ghidra performs static analysis and does not run the sample, but still work in the lab.
  • Treat any dumped/derived payloads as live samples.

Workflow

Step 1: Import and auto-analyze

Create a project, import the binary (Ghidra detects PE/ELF/Mach-O and arch), and run auto-analysis with default analyzers.

Step 2: Navigate to interesting code

Start from imports (Symbol Tree) and strings (Defined Strings). Cross-reference (X) from a suspicious API or string to its callers to reach the relevant function quickly.

VirtualAlloc/WriteProcessMemory -> injection logic
InternetOpen/WinHttp*           -> C2
CryptEncrypt / custom XOR loops -> crypto/config decode

Step 3: Annotate the decompiler output

Retype variables, rename functions, and add comments as you understand the code. Good naming turns the decompiler into readable pseudo-C and compounds across a session.

Step 4: Automate with headless scripts

For repeatable extraction, run Ghidra headless with a post-script. The bundled Python uses analyzeHeadless to export functions/strings to JSON:

python scripts/analyst.py headless --ghidra /opt/ghidra --bin sample.bin --out out.json

Step 5: Extract the target artifact

Recover the C2 string, key, or config and validate it against dynamic observations.

Validation

  • Renamed/retyped routines produce coherent pseudo-C consistent with observed behavior.
  • Extracted config (C2/keys) matches what the sample uses at runtime.
  • Headless export reproduces the interactive findings.

Pitfalls

  • Decompiling packed/obfuscated code — unpack first or the output is meaningless.
  • Trusting decompiler types blindly; verify against the disassembly for crypto/pointer logic.
  • Ignoring TLS callbacks/constructors that run before the entry point.

References

评价

还没有评价。欢迎分享你的使用感受。

评论

无需登录即可发表。欢迎分享使用感受、提问,或说明在哪些环境下无法运行。

还没有评论。来写第一条吧。

提交后会立即公开。请勿填写邮箱、电话等个人信息。URL 最多 2 个。

0 / 1000 字

此表单受 reCAPTCHA 保护,适用 Google 的隐私权政策和服务条款。

同一仓库的技能

Reverses Android malware: unpacking APKs, decompiling DEX bytecode to readable Java, auditing the manifest for abused permissions and components, and locating dynamically loaded or native payloads. Activates for requests to analyze an APK, decompile DEX, or investigate a suspicious Android app.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

Analyzes API call traces from a sandbox or API monitor (JSON) to group calls by category, reconstruct high-level behaviors (process injection, file drops, network, crypto), and flag suspicious call sequences. Activates for requests to analyze an API trace, interpret sandbox API logs, or identify behavior from Win32/Native API calls.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

Analyzes Windows Authenticode signatures on PE files: checking for a signature, reading the signer certificate chain, detecting revoked/expired/stolen certs, and recognizing signature-stripping and catalog-signing abuse. Activates for requests to analyze a code signature, verify Authenticode, or assess signer trust on a PE.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

Analyzes banking trojan webinject configurations to extract targeted institutions, injected JavaScript/HTML, and data-theft hooks, mapping the fraud workflow. Activates for requests to analyze banking trojan webinjects, parse a webinject config, or map targeted banks and credential-theft injections.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

Analyzes Python-based malware packaged as PyInstaller/py2exe executables by detecting the packer, locating the embedded archive, and identifying bundled .pyc modules for extraction and decompilation. Activates for requests to analyze compiled Python malware, unpack a PyInstaller binary, or extract pyc modules from a frozen Python executable.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

Analyzes cryptojacking/coinminer malware by extracting mining pool endpoints (stratum), wallet addresses, algorithm and miner identifiers (XMRig and forks), and persistence or resource-control settings from static strings and config. Activates for requests to analyze a cryptominer, extract mining pool and wallet IOCs, or identify coinminer configuration.

中文简介正在准备中。当前显示原文说明。

meltedinhex/analyst-ai-pack222026年7月7日 更新

查看 meltedinhex 的全部技能

报告此技能的问题