ET MALWARE Bitter APT Related Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/vis.php?st="; fast_pattern;
http.user_agent;
content:"Windows Installer"; bsize:17;
Raw source ET MALWARE Bitter APT Related Activity (GET) · 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 Bitter APT Related Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/vis.php?st="; fast_pattern;
    http.user_agent;
    content:"Windows Installer"; bsize:17;
    reference:md5,6e4b4eb701f3410ebfb5925db32b25dc;
    reference:url,twitter.com/k3yp0d/status/1527656133837594624;
    classtype:trojan-activity;
    sid:2036646; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_05_20, deployment Perimeter, malware_family Bitter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_20;
)

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