Versions (3)
Version DetailsCurrent
Rev: 5 • Feb 22, 2013, 12:00 PMET MALWARE CommentCrew Possible APT c2 communications get command client key
alert http $EXTERNAL_NET 80 -> $HOME_NET any (msg:"ET MALWARE CommentCrew Possible APT c2 communications get command client key"; flow:established,to_client; content:"Y29tbWFuZD1HZXRDb21tYW5kO2NsaWVudGtleT"; content:"O2hvc3RuYW1lPW"; classtype:targeted-activity; sid:2016488; rev:5; metadata:attack_target Client_Endpoint, created_at 2013_02_22, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2019_07_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Feb 22, 2013, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules