Anti Virus on Proxy
Currently our web filtering engine does not support filtering downloaded files for viruses. Nevertheless it is possible to add another ICAP anti-virus filtering server to Squid proxy.
Please note there were reports of some random inconsistencies on some sites that result into ICAP errors when using both Web Safety and ICAP Antivirus engine in ICAP chain. Unfortunately the reason for this is still unknown. Currently recommended solution for this problem is to exclude such sites from ICAP filtering.