alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.Duntek establishing remote connection"; flow:established,to_server; content:"rfe.php?"; nocase; http_uri; content:"cmp=dun_tekfirst"; nocase; http_uri; content:"guid="; nocase; http_uri; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2006-102514-0554-99; classtype:trojan-activity; sid:2003537; rev:6; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)