ET MALWARE TA399/Sidewinder CnC Server Response

Query · suricata

flow:established,to_client;
http.response_body;
content:"|3c|h1|3e|Oops|21 3c 2f|h1|3e|";
content:"|3c|p|3e|Oops|21 20|This|20|page|20|is|20|stuck|20|in|20|SpongeBob|2e 2e 2e|s|20|pineapple|20|under|20|the|20|sea|2e 3c 2f|p|3e|"; distance:0; fast_pattern;
Raw source ET MALWARE TA399/Sidewinder CnC Server Response · 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 TA399/Sidewinder CnC Server Response";
    flow:established,to_client;
    http.response_body;
    content:"|3c|h1|3e|Oops|21 3c 2f|h1|3e|";
    content:"|3c|p|3e|Oops|21 20|This|20|page|20|is|20|stuck|20|in|20|SpongeBob|2e 2e 2e|s|20|pineapple|20|under|20|the|20|sea|2e 3c 2f|p|3e|"; distance:0; fast_pattern;
    reference:url,x.com/StrikeReadyLabs/status/1821133707077370041;
    reference:md5,ccec3e4857cbb197ac79b0f3b01f5189;
    classtype:trojan-activity;
    sid:2055079; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_08, deployment Perimeter, deployment SSLDecrypt, malware_family Sidewinder, confidence High, signature_severity Major, tag TA399, updated_at 2024_08_08;
)

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