alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Rhadamanthys CnC Activity (GET)"; flow:established,to_server; urilen:74; http.method; content:"GET"; http.uri; pcre:"/^\x2f(?:[A-Z0-9]{8})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{12})\x2f(?:[A-Z0-9]{8})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{4})\x2d(?:[A-Z0-9]{12})$/"; http.user_agent; bsize:11; content:"WinHTTP/1.0"; fast_pattern; http.header; content:"Cache|2d|Control|3a 20|no|2d|cache|0d 0a|"; content:"|0d 0a|Pragma|3a 20|no|2d|cache|0d 0a|"; reference:md5,6ca89843cc5ffa1af85636dea4019a1a; reference:url,x.com/malwrhunterteam/status/1816435474380001777; classtype:trojan-activity; sid:2054665; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_25, deployment Perimeter, malware_family Rhadamanthys, confidence Medium, signature_severity Critical, tag c2, updated_at 2024_07_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)