Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .claude/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
skills CLI
$ npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .agents/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .cursor/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .gemini/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
skills CLI
$ npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .github/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "yara-sigs" agent skill from https://github.com/dariushoule/x64dbg-skills/tree/main/skills/yara-sigs into .opencode/skills/yara-sigs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "yara-sigs", then confirm the skill loads.
OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
Skill name
yara-sigs
GitHub stars
209
Token cost
~1.1k tokens
SKILL.md length
484 words
Files
2
Skills in repo
7
Repo updated
First seen
Licence
MIT
At a glance
Scan a state snapshot's memory dumps with YARA signatures to detect packers, crypto constants, malware, and more
Works in 6 steps: Check prerequisites → Ensure the YARA signature database is… → Determine what to scan for → …
Runs Python scripts from its folder; calls git, pip and python; reaches github.com
What it does
Yara Sigs is an agent skill from dariushoule/x64dbg-skills. Scan a state snapshot's memory dumps with YARA signatures to detect packers, crypto constants, malware, and more
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `yara_scan.py`).
The repository describes itself as: Claude Code plugin providing skills for x64dbg debugger automation. The licence is MIT.
Read from SKILL.md and the folder at commit 0409f53. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
mcp__x64dbg__get_debugger_status
mcp__x64dbg__pause
mcp__x64dbg__disconnect
mcp__x64dbg__connect_to_session
Bash
Read
AskUserQuestion
Skill
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (Python), which the agent can run.
Shell commands in SKILL.md call:
git
pip
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Yara Sigs loads about 1.1k tokens when it runs. Until then it costs about 31 tokens; SKILL.md has 484 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~31
When it runs· the whole SKILL.md, loaded when a task matches
~1.1k
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
Download SKILL.mdSave it as .claude/skills/yara-sigs/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
yara-sigs
description
Scan a state snapshot's memory dumps with YARA signatures to detect packers, crypto constants, malware, and more
Scan debuggee memory (via a state snapshot) against a large YARA signature database to identify packers, crypto constants, anti-debug tricks, malware families, and more.
Instructions
Follow these steps exactly:
1. Check prerequisites
Run pip show yara-python via Bash. If not installed, tell the user to run pip install yara-python and stop.
Run git --version via Bash. If not installed, tell the user to install Git and stop.
2. Ensure the YARA signature database is available
Check if the directory ${CLAUDE_PLUGIN_ROOT}\yarasigs exists (use dir). If it does not exist, clone it:
The YARA database contains many rule categories. If the user specified what they want to scan for in their invocation, use that. Otherwise, ask the user what they want to scan for using AskUserQuestion with these options:
Where <category> is one of: packers, crypto, antidebug, or all.
Module filtering: If the user asks to focus on a specific module (e.g. the main executable), pass --module-filter <name> where <name> is a substring of the module name as shown in the memory map (e.g. secret_encryptor). This merges all of the module's sections into a single buffer before scanning, which is critical for YARA rules whose patterns span multiple PE sections (e.g. MD5 init constants in .text + T-table in .rdata). Always prefer using --module-filter when scanning a specific module rather than relying on per-region scanning.
The script writes results to <snapshot_path>/yara_results.json and prints a summary to stdout.
6. Report results
Read <snapshot_path>/yara_results.json if it exists and the stdout summary is not sufficient.
Present findings organized by:
Match summary — How many rules matched across how many memory regions
Matches by rule — Each matched rule name, its description/metadata, and which memory regions it hit (with base addresses and region info from memory_map.json)
Notable findings — Call out anything especially interesting (known packers, specific crypto algorithms, anti-debug patterns)
If no matches were found, tell the user and suggest trying a broader category (e.g., "all").
Yara Sigs next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
Detect network reconnaissance and port scanning using Suricata and Snort IDS signatures, threshold-based detection rules, and traffic anomaly analysis to identify Nmap, Masscan, and custom scanning…
Hunt for vulnerabilities in a running debuggee by analyzing imports/exports, triaging attack surface, and iteratively testing for bugs with PoC generation.
Smart trace-based OEP finder for packed/protected PE executables.
209 GitHub stars~2.5k tokensUpdated 7 mo ago
Auto-check: notes
Questions about Yara Sigs
What does Yara Sigs do?
Scan a state snapshot's memory dumps with YARA signatures to detect packers, crypto constants, malware, and more. Yara Sigs is an agent skill from dariushoule/x64dbg-skills.
How do I install Yara Sigs in Claude Code?
Run `npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a claude-code`. Or copy the skill folder (skills/yara-sigs in dariushoule/x64dbg-skills) into .claude/skills/yara-sigs in your project. Claude Code loads it when a task matches its description.
How do I install Yara Sigs in Codex?
Run `npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a codex`. Or copy the skill folder (skills/yara-sigs in dariushoule/x64dbg-skills) into .agents/skills/yara-sigs in your project. Codex loads it when a task matches its description.
Can I use Yara Sigs in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dariushoule/x64dbg-skills --skill yara-sigs -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/yara-sigs, .gemini/skills/yara-sigs, .github/skills/yara-sigs and .opencode/skills/yara-sigs in your project.
What does Yara Sigs need to run?
Going by SKILL.md and its folder, Yara Sigs needs Python for the scripts in its folder and the command-line tools its instructions call (git, pip and python). Our summary lists: Python 3. Its frontmatter pre-approves these tools: mcp__x64dbg__get_debugger_status, mcp__x64dbg__pause, mcp__x64dbg__disconnect, mcp__x64dbg__connect_to_session, Bash, Read, AskUserQuestion, Skill.
Does Yara Sigs access the network?
SKILL.md names 1 domain. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Yara Sigs safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Yara Sigs use?
Yara Sigs is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Yara Sigs use?
About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Yara Sigs?
Skills that share tags, products or a category with Yara Sigs: Detecting Network Scanning With Ids Signatures (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Scan (wshobson/agents, 40k stars), Repo Scan (affaan-m/ECC, 276k stars) and Repo Scan (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Yara Sigs?
dariushoule (a GitHub user) maintains it in dariushoule/x64dbg-skills, which has 209 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on March 13, 2026.
Source: dariushoule/x64dbg-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.