ET MALWARE Win32/RecordBreaker CnC Checkin - Server Response M2

Query · suricata

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;
Raw source ET MALWARE Win32/RecordBreaker CnC Checkin - Server Response M2 · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
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;
)

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