ET MALWARE SiameseKitten/Lyceum/Hexane MSIL/Shark CnC Activity (Upload)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"o543n&qi="; fast_pattern;
Raw source ET MALWARE SiameseKitten/Lyceum/Hexane MSIL/Shark CnC Activity (Upload) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE SiameseKitten/Lyceum/Hexane MSIL/Shark CnC Activity (Upload)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"o543n&qi="; fast_pattern;
    reference:url,www.accenture.com/us-en/blogs/cyber-defense/iran-based-lyceum-campaigns;
    classtype:command-and-control;
    sid:2034369; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_09, deployment Perimeter, malware_family Shark, performance_impact Low, confidence High, signature_severity Major, tag LYCEUM, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_09;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.