Versions (2)
Version DetailsCurrent
Rev: 3 • Oct 13, 2014, 12:00 PMET DELETED W32/Symmi.23950 Dropper CnC Beacon 2
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED W32/Symmi.23950 Dropper CnC Beacon 2"; flow:established,to_server; content:"/search/?"; http_uri; depth:10; pcre:"/^\x2Fsearch\x2F\x3F[a-z]{2,5}\x3D/U"; content:"&ai="; http_uri; reference:url,www.welivesecurity.com/2014/10/08/sednit-espionage-group-now-using-custom-exploit-kit/; reference:md5,df895e6479abf85c4c65d7d3a2451ddb; classtype:command-and-control; sid:2019391; rev:3; metadata:attack_target Client_Endpoint, created_at 2014_10_13, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_07_26, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)
Oct 13, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-deleted.rules