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Llvm Obfuscation

Checked
gmh5225·vlatest·security·MIT

This LLVM obfuscation skill transforms code to make it harder to understand and reverse engineer, enhancing security by increasing analysis complexity.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add gmh5225/awesome-llvm-security --skill llvm-obfuscation -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

gmh5225

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned gmh5225/awesome-llvm-security at dad2f21a55.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
dad2f21a55
Manifest
.claude/skills/llvm-obfuscation/SKILL.md
Scanned
1 file, 108 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill utilizes LLVM to obfuscate code. It transforms executable binaries into a less readable and understandable form, making reverse engineering more difficult. The process involves techniques like instruction substitution, control flow flattening, and opaque predicate insertion while attempting to preserve functionality.

When to use it

  • Protecting proprietary algorithms or intellectual property embedded in executables.
  • Making malware analysis more challenging for security researchers.
  • Adding an extra layer of defense against unauthorized modification of software.
  • Obscuring sensitive data processing logic within a binary.

Key capabilities

  • Code transformation using LLVM passes
  • Instruction substitution
  • Control flow flattening
  • Opaque predicate insertion
  • Binary obfuscation

Example prompts

  • "Obfuscate this executable: /path/to/my/program"
  • "Apply a strong level of obfuscation to the binary."
  • "Can you make reverse engineering harder for this program?"

Tips & gotchas

The effectiveness of obfuscation is not foolproof; determined attackers can still potentially deobfuscate code. Ensure that the target executable is compatible with LLVM and its supported architectures for successful processing.