aeondave/objdump
offensive-tools/rev/objdump/SKILL.md
objdump: binutils inspection and disassembly tool for ELF and many other object formats. Use when you need fast CLI disassembly, section dumps, symbol views, or mixed source and assembly output during reverse engineering, exploit triage, or binary diffing.
$ install --global
skillsauthnpx skillsauth add aeondave/malskill objdumpInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: May 19, 2026, 4:55 AM160.2s1 file scanned
SKILL.md
- name:
- objdump
- description:
- objdump: binutils inspection and disassembly tool for ELF and many other object formats. Use when you need fast CLI disassembly, section dumps, symbol views, or mixed source and assembly output during reverse engineering, exploit triage, or binary diffing.
- compatibility:
- Linux, macOS, WSL; part of GNU binutils; strongest on ELF workflows
- author:
- AeonDave
- version:
- 1.0
objdump
Quick static inspection and disassembly without firing up a full GUI. Tiny hammer, surprisingly sharp.
When to use objdump
Use objdump when you need to:
- disassemble code sections quickly from a shell
- inspect headers, sections, relocations, or symbol tables
- dump raw bytes from a section like
.rodataor.text - compare compiler output or verify what a packer/stub changed
Quick Start
# Disassemble executable sections
objdump -d ./chall
# Disassemble all sections, not just code-marked ones
objdump -D ./chall
# Intel syntax on x86/x86-64
objdump -d -Mintel ./chall
High-Value Workflows
Code and symbols
objdump -d -Mintel ./chall
objdump -t ./chall
objdump -T ./chall
objdump -x ./chall
Dump interesting data sections
objdump -s -j .rodata ./chall
objdump -s -j .data ./chall
Mixed source plus assembly for local builds
objdump -S -Mintel ./chall
Practical Notes
- Prefer
readelfwhen you need canonical ELF metadata rather than a friendlier summary. -Dis useful for hand-marked shellcode regions or strange packer output where section flags lie.- Pair
objdump -s -j .rodatawithstringswhen looking for nearby format strings, keys, or banners.
Caveats
- objdump is a disassembler, not a decompiler.
- Linear disassembly can mislead on embedded data or obfuscated control flow.
- For stripped or heavily optimized code, combine with
gdb,strings, andreadelfinstead of trusting a single view.
Resources
No bundled scripts/, references/, or assets/.
Use the GNU binutils manual for architecture-specific -M options and file-format nuances.
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