alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.BackDoor-DRV.gen.c Reporting-2"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/zok.php?"; fast_pattern; nocase; content:"username="; nocase; content:"url="; nocase; content:"sid="; nocase; content:"tm="; nocase; content:"hlto="; nocase; reference:md5,d5ff6df296c068fcc0ddd303984fa6b9; classtype:trojan-activity; sid:2012114; rev:4; metadata:created_at 2010_12_30, signature_severity Major, updated_at 2024_03_17;)