Features

• Homograph Detection - Identifies domains using Unicode characters that visually resemble legitimate domains (e.g., аmazon.com using Cyrillic ‘а’)
• Typosquatting Detection - Catches common typos and character substitutions used in phishing attacks
• Real-time Email Analysis - Automatically scans email sender domains as you read your messages
• Visual Indicators - Clear warnings when suspicious domains are detected
• Privacy-Focused - All analysis happens locally in your browser

Installation

Chrome Web Store

Coming soon!

Manual Installation

# Clone the repository
git clone https://github.com/Remillardj/Vervain.git
cd Vervain

# Load in Chrome
# 1. Navigate to chrome://extensions/
# 2. Enable "Developer mode"
# 3. Click "Load unpacked"
# 4. Select the Vervain directory

How It Works

Vervain analyzes email sender domains for:

• Unicode homograph attacks (confusable characters)
• Common typosquatting patterns (character swaps, additions, omissions)
• Known phishing domain patterns
• Suspicious TLDs commonly used in phishing

Use Cases

• Email Security - Protect against phishing emails with lookalike sender domains
• Brand Protection - Detect impersonation attempts targeting your organization
• Security Awareness - Train users to recognize domain-based phishing techniques
• Incident Response - Quickly identify suspicious domains in email headers