Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/RecordBreaker CnC Checkin - Server Response"; flow:established,to_client; http.stat_code; content:"200"; http.response_body; content:"libs_"; content:".dll"; distance:0; content:"sstmnfo_System Info.txt|3a|"; fast_pattern; content:"token|3a|"; pcre:"/^[a-f0-9]{32}/R"; reference:md5,f75f596f7a0369717476f304eef7fe9b; classtype:trojan-activity; sid:2036955; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_09, deployment Perimeter, malware_family RecordBreaker, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_09;)