alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/case"; bsize:5; fast_pattern; http.cookie; content:"wordpress_52345768e930f1ec699e4f12ab015a4f="; startswith; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; http.user_agent; content:"Opera/9.61|20|(Windows|20|NT|20|5.1|3b 20|U|3b 20|ru)|20|Presto/2.1.1"; startswith; reference:md5,6b8d63299b70fb04a71bcadcf2f5f72b; reference:md5,2069c823d67e2d5d59606b3d8f6a7e22; reference:url,thedfirreport.com/2022/02/21/qbot-and-zerologon-lead-to-full-domain-compromise/; classtype:trojan-activity; sid:2035370; rev:3; metadata:attack_target Client_Endpoint, created_at 2022_03_02, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2024_03_12, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)