Rule History

alert tcp $HOME_NET any -> $EXTERNAL_NET 80 (msg:"ET MALWARE LURK Trojan Communication Protocol detected"; flow:established,to_server; content:"LURK|30|"; depth:5; content:"|78 9c|"; distance:8; reference:url,www.commandfive.com/papers/C5_APT_C2InTheFifthDomain.pdf; classtype:trojan-activity; sid:2014225; rev:3; metadata:created_at 2012_02_14, signature_severity Major, updated_at 2019_07_26;)