A GPL virus scanner featuring:

• command-line scanner

• fast, multi-threaded daemon

• milter interface for sendmail

• database updater with support for digital signatures

• virus scanner C library

• on-access scanning (Linux and FreeBSD)

• detection of over 36000 viruses, worms and trojans

• built-in support for RAR (2.0), Zip, Gzip, Bzip2, Tar, MS OLE2, MS Cabinet files, MS CHM (Compressed HTML), MS SZDD

• built-in support for mbox, Maildir and raw mail files

• built-in support for Portable Executable files compressed with UPX, FSG, and Petite

Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date.