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reverse-engineering
86 / 100 · Low risk
Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.
By coco-research/coco (GitHub) · coding · 628 stars · scanned at commit a9d6167
Provides reverse engineering techniques. Use when the main job is to understand how a compiled, obfuscated, packed, or virtualized target works before exploiting or solving it, including binaries, APKs, WASM, firmware, custom VMs, bytecode, malware-like loaders, and anti-debug or anti-analysis logic. Do not use it when the vulnerability is already understood and the remaining task is exploitation; use pwn instead. Do not use it for pure web workflows, log or disk forensics, or standalone crypto…
Works with any agent that supports SKILL.md skills.
What this skill can do
Downloads and installs other software
This is disclosed by the author in the skill's SKILL.md or README.
Found in 18 places.
Show 15 more
- systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 56
- pwndbg — Linux: [GitHub](https://github.com/pwndbg/pwndbg), macOS: `brew install pwndbg/tap/pwndbg-gdb` - systems/reverse-skill/skills/reverse-engineering/crypto-decode-tools.md, line 18
pip install ciphey - systems/reverse-skill/skills/reverse-engineering/languages-compiled.md, line 260
cargo install rustfilt - systems/reverse-skill/skills/reverse-engineering/languages-compiled.md, line 320
cargo install cargo-bloat - systems/reverse-skill/skills/reverse-engineering/languages-platforms.md, line 261
npm install -g @electron/asar - systems/reverse-skill/skills/reverse-engineering/platforms-hardware.md, line 110
apt install gcc-aarch64-linux-gnu gdb-multiarch qemu-user-static - systems/reverse-skill/skills/reverse-engineering/platforms.md, line 263
apt install gcc-arm-linux-gnueabihf gdb-multiarch - systems/reverse-skill/skills/reverse-engineering/references/ollvm-deobfuscation.md, line 217
pip install -r requirements.txt # miasm, graphviz, keystone-engine - systems/reverse-skill/skills/reverse-engineering/references/ollvm-deobfuscation.md, line 388
| **SiMBA** (`pip install simba-simplifier`) | 命令行/库 | 纯表达式化简，批量处理 | - systems/reverse-skill/skills/reverse-engineering/tools-advanced.md, line 220
pip install -r requirements.txt # miasm, graphviz, keystone-engine - systems/reverse-skill/skills/reverse-engineering/tools-advanced.md, line 430
pip install retdec-decompiler - systems/reverse-skill/skills/reverse-engineering/tools-advanced.md, line 595
bash -c "$(curl -fsSL https://gef.blah.cat/sh)" - systems/reverse-skill/skills/reverse-engineering/tools-dynamic.md, line 51
pip install frida-tools frida - systems/reverse-skill/skills/reverse-engineering/tools-dynamic.md, line 280
pip install angr - systems/reverse-skill/skills/reverse-engineering/tools-dynamic.md, line 556
pip install qiling
Runs commands on your computer
This is disclosed by the author in the skill's SKILL.md or README. Expected for a coding skill.
Found in 17 places.
Show 14 more
- systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 52
r2pm -ci r2ghidra # Native Ghidra decompiler for radare2 - systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 100
strings binary | grep -E "flag\{|CTF\{|pico" - systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 119
file binary # Type, architecture - systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 136
gdb ./binary - systems/reverse-skill/skills/reverse-engineering/SKILL.md, line 158
r2 -d ./binary # Debug mode - systems/reverse-skill/skills/reverse-engineering/anti-analysis.md, line 114
unshare -m bash -c 'mount --bind /dev/null /proc/self/status && ./binary' - systems/reverse-skill/skills/reverse-engineering/dsl-vm-reverse/SKILL.md, line 106
python3 << 'EOF' - systems/reverse-skill/skills/reverse-engineering/languages-platforms.md, line 212
- Use `subprocess.run()` with `timeout=2` to handle binaries that hang on bad input - systems/reverse-skill/skills/reverse-engineering/patterns-ctf-3.md, line 524
asm = subprocess.check_output(["objdump", "-M", "intel", "-d", binary]).decode() - systems/reverse-skill/skills/reverse-engineering/patterns-ctf.md, line 204
result = subprocess.run( - systems/reverse-skill/skills/reverse-engineering/patterns-ctf.md, line 459
bash -c "LD_PRELOAD=./hook.so ./ransomware; xxd /tmp/aes_key.bin" - systems/reverse-skill/skills/reverse-engineering/tools-advanced.md, line 595
bash -c "$(curl -fsSL https://gef.blah.cat/sh)" - systems/reverse-skill/skills/reverse-engineering/tools-dynamic.md, line 706
proc = subprocess.Popen( - systems/reverse-skill/skills/reverse-engineering/tools-dynamic.md, line 708
stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
Sends data to these websites: www.python.org, gef.blah.cat, dogbolt.org
This is disclosed by the author in the skill's SKILL.md or README.
Found in 3 places.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'reverse-engineering' ] || [ -L ~/.agents/skills/'reverse-engineering' ]; then echo 'A skill folder named reverse-engineering already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/coco-research/coco' "$d" && git -C "$d" checkout --quiet 'a9d616721638d6d855708508d97b7fad4aadb6a7' -- 'systems/reverse-skill/skills/reverse-engineering' && mkdir -p ~/.agents/skills && cp -R "$d"/'systems/reverse-skill/skills/reverse-engineering' ~/.agents/skills/'reverse-engineering' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'reverse-engineering' ~/.claude/skills/'reverse-engineering' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
The badge for coco-research/coco shows the score of its lowest-scoring skill.
[](https://zalavijaysinh.github.io/skilltrust/repos/coco-research/coco/)
Score history
| Date | Version | Score |
|---|
| 2026-11-08 | a9d6167 | 86 |
| 2026-11-07 | a9d6167 | 86 |