ET MALWARE Ousaban Banker Checkin M2

Query · suricata

flow:established,to_server;
stream_size:server,<,40;
content:"#ConvitRC#<#>"; startswith;
content:"<#>"; distance:0;
Raw source ET MALWARE Ousaban Banker Checkin 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 tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Ousaban Banker Checkin M2";
    flow:established,to_server;
    stream_size:server,<,40;
    content:"#ConvitRC#<#>"; startswith;
    content:"<#>"; distance:0;
    reference:md5,f2836216ca554dfdc8a300decb644911;
    reference:url,twitter.com/c3rb3ru5d3d53c/status/1452638349240455176;
    reference:url,twitter.com/James_inthe_box/status/1452631575976288261;
    classtype:command-and-control;
    sid:2034240; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_25, deployment Perimeter, malware_family Ousaban, confidence High, signature_severity Major, tag Banker, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_25;
)

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