ET MALWARE Win32/Remcos RAT Checkin 27

alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Remcos RAT Checkin 27";
    flow:established,to_server;
    content:"|bf 9b b2 d8 b7 a9 86 78 26 d6 10|"; depth:11; fast_pattern;
    content:"|0e 24|"; distance:2; within:2;
    threshold:type limit, seconds 30, count 1, track by_src;
    reference:md5,5c52234cf35ab8d08b10fcc3c2a9d32b;
    reference:url,blog.talosintelligence.com/2018/08/picking-apart-remcos.html;
    classtype:command-and-control;
    sid:2026017; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_23, deployment Perimeter, malware_family Remcos, performance_impact Low, confidence High, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_06, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)