alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Klom.A Connecting to Controller"; flow:established,to_server; content:"/s_13_0?m="; nocase; http_uri; content:"r="; nocase; http_uri; content:"&a="; nocase; http_uri; content:"&os="; nocase; http_uri; reference:url,www.bitdefender.com/VIRUS-1000126-en--Trojan.Klom.A.html; classtype:trojan-activity; sid:2003538; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)