ET HUNTING Generic IOT Downloader Malware in POST (Outbound)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"wget";
content:".sh|3b 20|chmod +x|20|"; within:200; fast_pattern;
content:"|3b 20|./"; within:100;
Raw source ET HUNTING Generic IOT Downloader Malware in POST (Outbound) · 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 HUNTING Generic IOT Downloader Malware in POST (Outbound)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"wget";
    content:".sh|3b 20|chmod +x|20|"; within:200; fast_pattern;
    content:"|3b 20|./"; within:100;
    classtype:bad-unknown;
    sid:2029009; rev:3;
    metadata:affected_product Linux, attack_target IoT, created_at 2019_11_20, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_04;
)

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