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Overview

Virus.xcheck is a Python tool designed to check the existence of file hashes in the Virus Exchange database. Due to the storage method used by Virus Exchange, only SHA-256 hashes are supported. However, for other hash types, the tool will return VirusTotal data. The tool can read SHA-256 hashes from a CSV file or accept a single hash from the command line, verifying each one against the Virus Exchange database.

Features

• Reads hashes from a CSV file or a single hash from the command line
• Checks each hash against the Virus Exchange API with S3 bucket fallback
• Parallel processing for efficient handling of larger files
• Colorized, beautifully formatted output in the terminal
• Outputs the results in JSON or CSV format
• Command-line interface with multiple options
• API key management with .env file support
• Rate limiting to prevent API throttling
• Interactive HTML reports with visualisations

Requirements

• Python 3.6+

Installation

Using pip

Install the required packages using the provided requirements.txt file:

pip install -r requirements.txt

API Key Setup

1. Get an API key from Virus.Exchange
2. Create a .env file in the root directory with your API key:

   VIRUSXCHECK_API_KEY=your_api_key_here
   

   Alternatively, you can provide the API key via command line:

   python virusxcheck.py -s "hash_value" -k "your_api_key_here" --save-config

   The --save-config option will save the API key to the .env file for future use.

Usage

Execute the script from the command line with the following options:

Check a single hash

python virusxcheck.py -s "hash_value"

Process multiple hashes from a CSV file

python virusxcheck.py -f /path/to/your/hashes.csv

Save results to a file

python virusxcheck.py -f /path/to/hashes.csv -o /path/to/results.csv
python virusxcheck.py -s "hash_value" -o /path/to/results.json

Generate HTML report

python virusxcheck.py -f /path/to/hashes.csv --html report.html

Disable colored output

python virusxcheck.py -s "hash_value" --no-color

Test Examples

Sample Hashes for Testing

d00853e592bccd823027e7e685d88c5a1f76a5a36ec5b7073d49ee633b050cc8
3965811a37eded16030a1dd4ac57119ce774bed4fcd70a232011f8f86efbfd83
51919bdfd8bc0ebeec651efdd5d97dae7ad9532cb10f6efaa67c3dbc88ea7500

Testing with Sample CSV

Create a file test_hashes.csv with the above hashes and run:

python virusxcheck.py -f test_hashes.csv --html results/report.html -o results/output.csv

Sample Output

When running the tool with the test hashes, you'll see output similar to:

VirusTotal API integration enabled
Processing: 100%|██████████████████████| 3/3 [00:00<00:00, 5.85it/s]
HTML report saved to results/report.html
Results saved to results/output.csv

The terminal will display detailed information about each hash, including:

• Detection status (found/not found)
• File metadata (size, type, first seen)
• Known filenames
• Tags associated with the sample
• VirusTotal detection statistics
• Download and reference links

Command-Line Arguments

• -s, --single: Single hash string to check
• -f, --file: Path to CSV file containing hashes
• -o, --output: Path to output file (CSV or JSON format)
• -k, --apikey: Virus.Exchange API key
• --vt-apikey: VirusTotal API key
• --html: Generate HTML report with interactive charts
• --save-config: Save API keys to .env file
• --no-color: Disable colored output

Output Formats

Terminal Output

The tool produces a colored output in the terminal:

• Red for malicious files found in the database
• Green for clean files not found
• Yellow for warnings and errors
• Metadata display with file information, names, tags, and links

HTML Reports

The HTML reports include:

• Interactive charts showing detection rates and statistics
• File metadata and statistics
• Malware tag classification
• Detailed scan results from VirusTotal

JSON Output

{
    "dbd5e933fe023ee03953ed8a8997c58be05ba97c092b795647962cf111bcd540": {
        "status": "Found in VX database",
        "details": {
            "md5": "d51c19925a2ae853d3b19a1259f86de5",
            "size": 4042752,
            "type": "unknown",
            "names": [
                "csrss.exe",
                "app.exe"
            ],
            "sha1": "332a18521f2905e233bbab094a021cee44ac750e",
            "tags": [
                "spreader",
                "peexe",
                "executable",
                "windows"
            ],
            "first_seen": "2025-03-30T17:36:55Z",
            "download_link": "https://s3.us-east-1.wasabisys.com/vxugmwdb/dbd5e933fe023ee03953ed8a8997c58be05ba97c092b795647962cf111bcd540"
        },
        "virustotal_url": "https://www.virustotal.com/gui/file/dbd5e933fe023ee03953ed8a8997c58be05ba97c092b795647962cf111bcd540"
    }
}

CSV Output

The CSV output includes columns for:

• Hash
• VX Status
• File Type
• Size
• First Seen
• Names
• VX URL
• Download Link
• VirusTotal URL
• VT Detection Rate
• VT Malicious
• VT Suspicious
• VT Clean
• VT Type
• VT First Seen
• VT Tags

Disclaimer

This tool is for informational purposes only. Ensure you have the right to access and check the hashes against the database and always comply with the terms of service of the Virus Exchange and VirusTotal APIs.