Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Related Activity (GET)"; flow:established,to_server; http.request_line; content:"GET /api/v2/login HTTP/1.1"; fast_pattern; http.referer; content:"code.jquery.com"; http.cookie; content:"__cfduid="; startswith; pcre:"/^[A-Za-z0-9-_]{171}$/R"; reference:url,isc.sans.edu/diary/rss/28824; reference:md5,0842c91746d69e9c14e51425d1ceca3f; classtype:trojan-activity; sid:2037745; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_07_12, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2022_07_12, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)