# SSLBL - SSL Blacklist

SSLBL - SSL Blacklist is a Threat Intel Feeds product. It runs in the cloud. Pricing is free.

A project that detects malicious SSL connections by identifying and blacklisting SSL certificates used by botnet C&C servers and identifying JA3 fingerprints to detect and block malware botnet C&C communication.

Checked October 2026.

## What is SSLBL - SSL Blacklist?

The SSL Blacklist (SSLBL) is a project of abuse.ch that detects malicious SSL connections by identifying and blacklisting SSL certificates used by botnet C&C servers. It also identifies JA3 fingerprints to detect and block malware botnet C&C communication on the TCP layer. The platform provides a list of malicious SSL certificates, JA3 fingerprints, and statistics on botnet C&C operations that leverage SSL to encrypt botnet C&C traffic.

The platform offers several features, including:

* Identifying botnet command and control (C&C) infrastructure
* Detecting botnet C&C communication
* Providing insights into botnet C&C operations that leverage SSL to encrypt botnet C&C traffic

Tags: C2, SSL, Botnet

## Where it fits in your security program (NIST CSF 2.0)

- [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity.

## Quick facts

- Category: [Threat Intelligence](https://cybersectools.com/categories/threat-intelligence) · [Threat Intel Feeds](https://cybersectools.com/categories/threat-intel-feeds)
- Deployment: Cloud
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- Website: sslbl.abuse.ch

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best Threat Intelligence Platform Solutions for Business](https://cybersectools.com/shortlists/best-threat-intelligence-platforms).

## SSLBL - SSL Blacklist FAQ

### What is SSLBL - SSL Blacklist?

SSLBL - SSL Blacklist is a product in the Threat Intel Feeds category. It covers C2, SSL and Botnet.

### What is the pricing for SSLBL - SSL Blacklist?

SSLBL - SSL Blacklist is free. Download and setup instructions are at https://sslbl.abuse.ch/.

### What are alternatives to SSLBL - SSL Blacklist?

Alternatives to SSLBL - SSL Blacklist listed on CybersecTools:

1. [Webz.io](https://cybersectools.com/tools/webzio) - Web data platform providing open, deep & dark web APIs and monitoring. (Commercial)
2. [Scarlet Shark Intel Lists](https://cybersectools.com/tools/scarlet-shark-intel-lists) (Free)
3. [OPSWAT MetaDefender InSights C2](https://cybersectools.com/tools/opswat-metadefender-insights-c2) - Real-time C2 infrastructure detection and disruption threat intelligence feed (Commercial)
4. [Malware Patrol Enterprise CTI](https://cybersectools.com/tools/malware-patrol-enterprise-cti) - Enterprise threat intelligence feeds covering malware, phishing, C2, and IPs (Commercial)
5. [ZeroFox Threat Intelligence Feeds](https://cybersectools.com/tools/zerofox-threat-intelligence-feeds) - Threat intelligence feeds for SOC teams from social, dark web & botnet sources (Commercial)

Compare all SSLBL - SSL Blacklist alternatives at [https://cybersectools.com/alternatives/sslbl-ssl-blacklist](https://cybersectools.com/alternatives/sslbl-ssl-blacklist)

### What deployment and organization size does SSLBL - SSL Blacklist fit?

SSLBL - SSL Blacklist is available as a cloud service. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.

## Compare SSLBL - SSL Blacklist with similar solutions

- [SSLBL - SSL Blacklist vs Webz.io](https://cybersectools.com/compare/sslbl-ssl-blacklist-vs-webzio)
- [SSLBL - SSL Blacklist vs Scarlet Shark Intel Lists](https://cybersectools.com/compare/scarlet-shark-intel-lists-vs-sslbl-ssl-blacklist)
- [SSLBL - SSL Blacklist vs OPSWAT MetaDefender InSights C2](https://cybersectools.com/compare/opswat-metadefender-insights-c2-vs-sslbl-ssl-blacklist)

All alternatives to SSLBL - SSL Blacklist: [/alternatives/sslbl-ssl-blacklist](https://cybersectools.com/alternatives/sslbl-ssl-blacklist)

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Source: https://cybersectools.com/tools/sslbl-ssl-blacklist

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