anti-reversing-techniques

Understand anti-reversing, obfuscation, and protection techniques encountered during software analysis. Use when analyzing protected binaries, bypassing anti-debugging for authorized analysis, or u...

Quality

66%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

Securityby

Passed

No known issues

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npx tessl skill review --optimize ./skills/antigravity-anti-reversing-techniques/SKILL.md

Evaluation results

99%

-1%

Linux Daemon Analysis — CTF Challenge

Linux anti-debug bypass and analysis

Criteria

Without context

With context

Authorization statement

100%

Scope documentation

100%

Identifies ptrace check

100%

Identifies /proc check

100%

Identifies parent check

100%

LD_PRELOAD bypass approach

100%

ptrace hook returns 0

100%

Makefile with shared lib target

100%

Usage instructions

100%

Preserve original artifacts

100%

Defensive recommendations

100%

Evidence/chain-of-custody note

100%

90%

Without context: $0.6883 · 3m 1s · 22 turns · 22 in / 11,391 out tokens

With context: $0.7461 · 2m 54s · 26 turns · 328 in / 9,728 out tokens

100%

14%

Malware Sample Investigation — Unpacking and String Recovery

Packed binary unpacking methodology

Criteria

Without context

With context

Authorization/scope statement

71%

100%

Packer identification step

100%

Static unpacking attempt

100%

Dynamic unpacking workflow

100%

ESP trick for OEP

10%

100%

Memory dump step

100%

Import table repair

70%

100%

FLOSS recommendation

100%

XOR brute-force script

100%

Chain-of-custody notes

100%

Defensive recommendations

100%

Do not modify original artifact

100%

Without context: $0.5662 · 3m 3s · 13 turns · 13 in / 8,971 out tokens

With context: $0.5760 · 3m 1s · 17 turns · 97 in / 9,192 out tokens

94%

-4%

Obfuscated Loader Analysis — Security Research Engagement

Code obfuscation analysis and reporting

Criteria

Without context

With context

Authorization/scope statement

100%

Control flow analysis approach

100%

CFF tools mentioned

100%

Opaque predicate explanation

100%

Symbolic execution for predicates

100%

API hash resolution approach

100%

HashDB plugin mentioned

100%

XOR decryption script

100%

Document findings, not modify artifacts

71%

57%

Defensive recommendations

100%

Scope of sharing noted

100%

Evidence handling notes

100%

70%

Without context: $0.7583 · 4m 58s · 16 turns · 16 in / 15,822 out tokens

With context: $0.9530 · 4m 45s · 25 turns · 438 in / 16,050 out tokens

Repository: boisenoise/skills-collections
Commit: 5c5ae21

Evaluated: 19 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Linux Daemon Analysis — CTF Challenge Malware Sample Investigation — Unpacking and String Recovery Obfuscated Loader Analysis — Security Research Engagement

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