alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32.Koblu"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"sid="; nocase; content:"&sa="; nocase; content:"&p="; content:"&q=cards&rf="; content:"&enc="; content:"&enk=&xsc=&xsp=&xsm="; fast_pattern; classtype:trojan-activity; sid:2010230; rev:8; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_16;)