ET HUNTING Generic IOT Downloader Malware in GET (Outbound)

Query · suricata

flow:established,to_server;
content:"GET "; depth:4;
content:"wget http"; within:200;
content:"|20 3b 20|chmod "; within:200; fast_pattern;
content:"|20 3b 20|./"; within:100;
Raw source ET HUNTING Generic IOT Downloader Malware in GET (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 GET (Outbound)";
    flow:established,to_server;
    content:"GET "; depth:4;
    content:"wget http"; within:200;
    content:"|20 3b 20|chmod "; within:200; fast_pattern;
    content:"|20 3b 20|./"; within:100;
    classtype:bad-unknown;
    sid:2029010; rev:2;
    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 2019_11_20;
)

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