Open source innovator and SNORT creator, Sourcefire, Inc., today announced that it has acquired ClamAV™, a leading open source gateway anti-virus and anti-malware project. Sourcefire’s first acquisition since its Initial Public Offering in March 2007, ClamAV will broaden the company’s open source footprint while providing the technology foundation for new products and services that will extend the company’s Enterprise Threat Management network security portfolio.