ET HUNTING VibeCoded MSI Installer VBS Script Inbound

Query · suricata

flow:established,to_client;
http.response_body;
content:"|27 20|MSI|20|Installer|20|Script"; startswith; fast_pattern;
content:"Const|20|MSI|5f|URL"; distance:0;
content:"Const|20|MSI|5f|NAME|20 3d|"; distance:0;
content:"Const|20|LOG|5f|FILE|20 3d|"; distance:0;
target:dest_ip;
Raw source ET HUNTING VibeCoded MSI Installer VBS Script Inbound · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET HUNTING VibeCoded MSI Installer VBS Script Inbound";
    flow:established,to_client;
    http.response_body;
    content:"|27 20|MSI|20|Installer|20|Script"; startswith; fast_pattern;
    content:"Const|20|MSI|5f|URL"; distance:0;
    content:"Const|20|MSI|5f|NAME|20 3d|"; distance:0;
    content:"Const|20|LOG|5f|FILE|20 3d|"; distance:0;
    classtype:misc-activity;
    sid:2068411; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_03_24, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Informational, updated_at 2026_03_24, mitre_tactic_id TA0002, mitre_tactic_name Execution, mitre_technique_id T1072, mitre_technique_name Software_Deployment_Tools;
    target:dest_ip;
)

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