ET MALWARE Netbounce Proxy User-Agent (idk)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"idk"; bsize:3; fast_pattern;
Raw source ET MALWARE Netbounce Proxy User-Agent (idk) · 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 Netbounce Proxy User-Agent (idk)";
    flow:established,to_server;
    http.user_agent;
    content:"idk"; bsize:3; fast_pattern;
    reference:url,www.fortinet.com/blog/threat-research/netbounce-threat-actor-tries-bold-approach-to-evade-detection;
    reference:md5,1b4b013948c9af0260409ce7cb7d107b;
    classtype:trojan-activity;
    sid:2032225; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_03_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_19;
)

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