ET MALWARE Lemon_Duck Linux Shell Script CnC Activity

Query · suricata

flow:established,to_server;
http.uri;
content:"/ln/a.asp?"; startswith; fast_pattern;
content:"_"; distance:0;
Raw source ET MALWARE Lemon_Duck Linux Shell Script CnC Activity · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Lemon_Duck Linux Shell Script CnC Activity";
    flow:established,to_server;
    http.uri;
    content:"/ln/a.asp?"; startswith; fast_pattern;
    content:"_"; distance:0;
    reference:url,github.com/sophoslabs/IoCs/blob/master/Trojan-LDMiner.csv;
    classtype:command-and-control;
    sid:2030826; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_09_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_02;
)

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