Recently, I got the task to build a malware scan server which supports ICAP at work. Actually we use RedHat Enterprise Linux as OS. But c-icap isn't available as package in one of the trustworthy repositories, so I decided to use OpenBSD for the task. The malware scan server uses ClamAV as malware scanner and c-icap als ICAP server, providing an interface for other products that support ICAP such as Squid.