offensive-fuzzing skillA
offensive-fuzzing is agent-read markdown (skill) from snailsploit/claude-red: Practical offensive fuzzing methodology covering target identification, fuzzer selection (AFL++, libFuzzer, Honggfuzz, Boofuzz, syzkaller), harness writing, corpus curation, mutation strategies, coverage measurement, and crash triage. Use when setting up or running fuzz campaigns against any target: file parsers, network protocols, kernel drivers, EDR engines, embedded firmware, or language runtimes..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Offensive Fuzzing ## Fuzzer Types | Type | Coverage | Speed | Tools | |------|----------|-------|-------| | BlackBox | Poor | Fast | Peach, Boofuzz | | GreyBox | Good | Fast | AFL++, Honggfuzz, libFuzzer, WinAFL | | Snapshot | Good | Fastest | Nyx, wtf, Snapchange | | WhiteBox | Best | Slow | KLEE, QSYM, SymSan | | Ensemble | Best | Fast | AFL++ + Honggfuzz + libFuzzer | **GreyBox sub-variants:** Directed (AFLGo, UAFuzz), Grammar (AFLSmart, Tlspuffin), Concolic (QSYM, Driller), Kernel (syzkaller, kAFL, wtf). ## Core Workflow ``` Research target → Choose analyses → Build harness → Seed corpus → Instrument → Fuzz → Triage crashes → Report ``` ### 1. Research Target - Map all input surfaces (files, network, IPC, syscalls, IOCTL) - Identify high-value areas: previously patched code, complex parsers, newly added code, input ingestion points - For kernel modules: look beyond `copy_from_user` — DMA-BUF ops, page fault handlers, VM operation structs, allocation callbacks ### 2. Instrument and Build ```bash # AFL++ (preferred for GreyBox) CC=afl-clang-fast CXX=afl-clang-fast++ cmake -DCMAKE_BUILD_TYPE=Release .. && make -j # libFuzzer + ASan/UBSan (C/C++) …
Read the whole file at its exact version.
How to install
mdr add snailsploit/claude-red/offensive-fuzzing@git:20260506.70e0c89mdr add snailsploit/claude-red/offensive-fuzzing@sha256:fcd129b42cdf383cPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_vxh4hlqq5widikis)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11875 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
snailsploit/claude-red · 6,831 stars · license MIT · pushed 2026-09-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vxh4hlqq5widikis GET https://markdownregistry.com/api/v1/resolve?ref=snailsploit/claude-red/offensive-fuzzing GET https://markdownregistry.com/api/v1/blob/fcd129b42cdf383cacd7852db336dc51e3e540d872ead9931c7acec30b4088c4
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