ET ATTACK_RESPONSE RuPSRAT Command Inbound (Download/Execute GoBayden)

Query · suricata

flow:established,to_client;
dsize:<250;
content:"powershell|20 2d|Command"; startswith; nocase;
content:"|2e|dll|2c|gobayden|27 7d 22|"; endswith; fast_pattern;
Raw source ET ATTACK_RESPONSE RuPSRAT Command Inbound (Download/Execute GoBayden) · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET ATTACK_RESPONSE RuPSRAT Command Inbound (Download/Execute GoBayden)";
    flow:established,to_client;
    dsize:<250;
    content:"powershell|20 2d|Command"; startswith; nocase;
    content:"|2e|dll|2c|gobayden|27 7d 22|"; endswith; fast_pattern;
    reference:md5,c6ef634779facf10516f0dd6d0d1757c;
    reference:url,x.com/JAMESWT_MHT/status/1862048169053364405;
    classtype:command-and-control;
    sid:2058116; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_12_06, deployment Perimeter, malware_family RuPSRAT, confidence High, signature_severity Critical, updated_at 2024_12_06;
)

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