If you are confused by the naming of ClamAV products, here’s a quick breakdown. The products listed above are the only ones developed and maintained by SourcefireIncidentsfrom Sourcefire Inc. The products are only ones from Sourcefire’s Sourcefire, which uses Sourcefire to develop and maintain the software. The software is designed especially for e-mail scanning on mail gateways, and is available in Win32 versions. It’s also available in Windows, with an advanced Cloud-based protection mechanism.”]
Source: https://blog.talosintelligence.com/2010/04/what-in-name.html