Agent skill
binary-reconnaissance
Initial reconnaissance on binaries including checksec, file analysis, strings, and symbols. First step for any new target.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/binary-reconnaissance
SKILL.md
Binary Reconnaissance
First-look analysis of any new binary target. Run these checks before deeper analysis.
Checklist
- File type:
file target - Security mitigations:
checksec target - Symbols:
nm targetorreadelf -s target - Strings:
strings target | grep -i flag\|win\|shell - Disassembly:
objdump -M intel -d target > target.asm
Checksec Interpretation
| Protection | Enabled | Disabled | Bypass |
|---|---|---|---|
| NX | Can't execute shellcode on stack | Shellcode works | ROP, ret2libc |
| Canary | Stack smash detected | No protection | Leak canary, brute force |
| PIE | Addresses randomized | Fixed addresses | Leak code address |
| RELRO | GOT protected | GOT writable | Can't use GOT overwrite |
Quick Wins to Look For
- Functions named
win,get_flag,shell,backdoor - Strings containing
flag,/bin/sh,cat flag system()orexecve()in PLT- No canary + no PIE = likely simple overflow
Output
Produce context/binary-info.md using the template.
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