Perform coverage-guided fuzzing of compiled binaries using AFL++ (American Fuzzy Lop Plus Plus) to discover memory corruption, crashes, and security vulnerabilities. The tester instruments target binaries with afl-cc/afl-clang-fast, manages input corpora with afl-cmin and afl-tmin, runs parallel fuzzing campaigns with afl-fuzz, and triages crashes using CASR or GDB scripts. Activates for requests involving binary fuzzing, crash discovery, coverage-guided testing, or AFL++ fuzzing campaigns.
Automate repetitive workflows and reduce manual effort
Example: Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Learn new skills, understand complex topics, get expert guidance
Example: Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Enhance output quality through reviews, suggestions, and refinements
Example: Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Time estimate: 15-45 minutes depending on use case complexity
Prerequisites
Submit your Claude Code skill and start earning
epx add mukul975/Anthropic-Cybersecurity-Skills/performing-fuzzing-with-aflplusplusCompatible with
Supported agents
| name | performing-fuzzing-with-aflplusplus |
| description | 'Perform coverage-guided fuzzing of compiled binaries using AFL++ (American Fuzzy Lop Plus Plus) to discover memory corruption, crashes, and security vulnerabilities. The tester instruments target binaries with afl-cc/afl-clang-fast, manages input corpora with afl-cmin and afl-tmin, runs parallel fuzzing campaigns with afl-fuzz, and triages crashes using CASR or GDB scripts. Activates for requests involving binary fuzzing, crash discovery, coverage-guided testing, or AFL++ fuzzing campaigns. ' |
| domain | cybersecurity |
| subdomain | application-security |
| tags | - fuzzing - aflplusplus - coverage-guided - crash-triage - binary-analysis - security-testing |
| version | '1.0' |
| author | mahipal |
| license | Apache-2.0 |
| nist_ai_rmf | - MEASURE-2.7 - MAP-5.1 - MANAGE-2.4 |
| atlas_techniques | - AML.T0070 - AML.T0066 - AML.T0082 |
| nist_csf | - PR.PS-01 - PR.PS-04 - ID.RA-01 - PR.DS-10 |
AFL++ is a community-maintained fork of American Fuzzy Lop (AFL) that provides coverage-guided fuzzing for compiled binaries. It instruments targets at compile time or via QEMU/Unicorn mode for binary-only fuzzing, then mutates input corpora to discover new code paths. AFL++ includes advanced scheduling (MOpt, rare), custom mutators, CMPLOG for input-to-state comparison solving, and persistent mode for high-throughput fuzzing.
apt install afl++ or build from source)afl-cc or afl-clang-fastafl-cmin to remove redundant seedsafl-fuzz with appropriate flags (-i input -o output)afl-tmin minimization and CASR/GDB analysis+++ Findings +++
unique crashes: 12
unique hangs: 3
last crash: 00:02:15 ago
+++ Coverage +++
map density: 4.23% / 8.41%
paths found: 1847
exec speed: 2145/sec
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionperforming-fuzzing-with-aflplusplusExecute the skills CLI command in your project's root directory to begin installation:
epx add mukul975/Anthropic-Cybersecurity-Skills/performing-fuzzing-with-aflplusplusFetches performing-fuzzing-with-aflplusplus from mukul975/Anthropic-Cybersecurity-Skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
.cursor/skills/performing-fuzzing-with-aflplusplus
Restart Cursor to activate performing-fuzzing-with-aflplusplus. Access via /performing-fuzzing-with-aflplusplusin your agent's command palette.
Learn more:View source on GitHubSkills CLI docsAbout CursorWhat are agent skills?
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Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
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Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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performing-fuzzing-with-aflplusplus has been reliable in day-to-day use. Documentation quality is above average for community skills.
performing-fuzzing-with-aflplusplus has been reliable in day-to-day use. Documentation quality is above average for community skills.
Keeps context tight: performing-fuzzing-with-aflplusplus is the kind of skill you can hand to a new teammate without a long onboarding doc.
performing-fuzzing-with-aflplusplus fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
Registry listing for performing-fuzzing-with-aflplusplus matched our evaluation — installs cleanly and behaves as described in the markdown.
We added performing-fuzzing-with-aflplusplus from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
Solid pick for teams standardizing on skills: performing-fuzzing-with-aflplusplus is focused, and the summary matches what you get after install.
Solid pick for teams standardizing on skills: performing-fuzzing-with-aflplusplus is focused, and the summary matches what you get after install.
performing-fuzzing-with-aflplusplus reduced setup friction for our internal harness; good balance of opinion and flexibility.
performing-fuzzing-with-aflplusplus reduced setup friction for our internal harness; good balance of opinion and flexibility.
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