About ClamAV®

ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats. It is the de facto standard for mail gateway scanning. It provides a high performance mutli-threaded scanning daemon, command line utilities for on demand file scanning, and an intelligent tool for automatic signature updates. The core ClamAV library provides numerous file format detection mechanisms, file unpacking support, archive support, and multiple signature languages for detecting threats. The core ClamAV library is utilized in Immunet 3.0, powered by ClamAV, which is a fast, fully featured Desktop AV solution for Windows.

Latest Stable Release

Latest ClamAV® stable release is: 0.98.1
Windows Antivirus - Immunet 3.0, powered by ClamAV (Learn more) Download now
ClamAV Virus Databases:
main.cvd ver. 55 released on 17 Sep 2013 10:57 :0400 (sig count: 2424225)
daily.cvd ver. 18856 released on 24 Apr 2014 20:17 :0400 (sig count: 907218)
bytecode.cvd ver. 236 released on 05 Feb 2014 12:36 :0500 (sig count: 43)
safebrowsing.cvd ver. 41841 released on 24 Apr 2014 22:00 :0400 (sig count: 1132131)

Latest Development Release (Release Candidates)

There are no Release Candidates currently planned.


ClamAV 0.93.1 released

June 9th, 2008 Posted by - jesler

ClamAV 0.93.1 was released today. This version improves handling of PDF, CAB, RTF, OLE2 and HTML files and includes various bugfixes for 0.93 issues.
You can download it from the usual location.

ClamAV webinar

June 8th, 2008 Posted by - jesler

You are all invited to attend what we hope will be the first in a series of ClamAV webinars presented by members of the ClamAV team within Sourcefire. The talk, given by ClamAV author and Sourcefire's ClamAV CTO, Tomasz Kojm, will cover a broad introduction to ClamAV. The presentation will last approximately one hour and cover: (Read more...)

Sourcefire’s rejection of unsolicited bid

May 30th, 2008 Posted by - nhoughton

Hi everyone,

As you may have heard, Sourcefire received an unsolicited offer to acquire the company. This morning Sourcefire announced that our board has rejected that offer. The complete press release is available at: http://investor.sourcefire.com/phoenix.zhtml?c=204582&p=irol-newsArticle&ID=1152071&highlight=

Survey on bug reporting

May 7th, 2008 Posted by - jesler

Sourcefire and the ClamAV core team are committed to improving the quality of ClamAV, but we need your help. You can play a critical role in the ClamAV project by participating in the release candidate (RC) process.

While there have been many downloads of the RC version for 0.93, feedback and bug reports on the RC release were few and far between. As you are aware, very shortly after the release of 0.93 a number of bugs were discovered and (Read more...)

Tomasz Kojm interviewed by SANS Technology Institute

April 4th, 2008 Posted by - jesler

SANS Technology Institute just published an interview with ClamAV project founder Tomasz Kojm.
The interview gives the reader an insight on the origin of the project, the vision that leads its development and the current situation in the malware arena.
A recommended read!