alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET P2P zzima_loader"; flow:established, to_server; http.method; content:"GET"; http.uri; content:"/zzima_loader/"; fast_pattern; http.user_agent; content:"zzima-nloader/ 1.0.3.1"; depth:22; http.header_names; content:!"Referer|0d 0a|"; reference:md5,810b4464785d8d007ca0c86c046ac0ef; classtype:trojan-activity; sid:2018532; rev:5; metadata:created_at 2014_06_05, confidence High, signature_severity Major, updated_at 2020_09_24;)