alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/RecordBreaker CnC Checkin - Server Response M2"; flow:established,to_client; http.stat_code; content:"200"; http.response_body; content:"DESKTOP|3b 25|DESKTOP|25 5c 3b 2a 2e|txt|3a 2a 2e|doc|3a 2a 2e|docx|3a 2a 2e|rtf|3a 2a 2e|xls|3a 2a 2e|xlsx|3b|"; offset:55; depth:57; fast_pattern; reference:md5,0d61d2818b063c71648b5d7a4451e0c0; classtype:trojan-activity; sid:2038917; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_21, deployment Perimeter, malware_family RecordBreaker, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_26, reviewed_at 2024_01_26;)