aeondave/malskill/holehe

Claude Code and agent skill by aeondave/malskill

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Auth/lab ref: Check if an email address is registered on 120+ websites using account-recovery probes (not login attempts).

Install

npx vskill@latest install aeondave/malskill/holehe

SKILL.md

Holehe

Email-to-account mapper — check if an email is registered across 120+ services.

Quick Start

bash
pip install holehe
 
# Check a single email
holehe target@gmail.com
 
# Output only registered sites
holehe target@gmail.com --only-used
 
# JSON output
holehe target@gmail.com --only-used --json > results.json

Core Flags

FlagPurpose
--only-usedShow only sites where email is registered
--no-colorDisable color output
--jsonJSON output
-T NTimeout per request

Sites Checked (examples)

Google · Twitter/X · GitHub · Instagram · LinkedIn · Reddit · Snapchat · Spotify · Adobe · Airbnb · Amazon · Dropbox · Flickr · Pinterest · Tumblr + 100 more

Common Workflows

OSINT on target email:

bash
holehe ceo@targetcompany.com --only-used --json | tee email_presence.json

Batch check from file:

bash
cat emails.txt | xargs -I {} holehe {} --only-used

Combine with username pivot:

bash
# If target email is johndoe@gmail.com, extract username
holehe johndoe@gmail.com --only-used --json | jq '.[] | .name' | \
  xargs -I {} echo "sherlock johndoe --site {}"

How It Works

Holehe uses account-recovery flows (password reset) — not login attempts. Most sites respond differently to "email not found" vs "reset link sent", so holehe detects registration without credentials. Low noise, does not lock accounts.

Email Sources for OSINT

bash
# From company domain — harvest emails with theHarvester first
theHarvester -d target.com -b google,bing,linkedin -l 200
 
# From breach databases
# dehashed.com, haveibeenpwned.com, intelx.io
 
# From GitHub commits
curl "https://api.github.com/repos/<owner>/<repo>/commits" | \
  jq '.[].commit.author.email' | sort -u

Resources

FileWhen to load
references/email-osint.mdEmail harvesting sources, breach lookup APIs, pivot from email to full profile

Security

  • Security scanPassed, 90 of 100Pattern checks on the skill's files.
  • Model reviewPassed

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Quality evaluation

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Source

Popularity

Repository stars
22
Repository forks
1
7-day trend score
21

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