ET MALWARE Vidar Stealer Form Exfil


Query · suricata

flow:established,to_server;
http.request_line;
content:"POST|20 2f 20|"; startswith;
http.request_body;
content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|token|22|";
content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|build|5f|id|22|";
content:"file_name";
content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|5f|data|22 0d 0a 0d 0a|UEs"; fast_pattern;
Raw source ET MALWARE Vidar Stealer Form Exfil · 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 MALWARE Vidar Stealer Form Exfil";
    flow:established,to_server;
    http.request_line;
    content:"POST|20 2f 20|"; startswith;
    http.request_body;
    content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|token|22|";
    content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|build|5f|id|22|";
    content:"file_name";
    content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|5f|data|22 0d 0a 0d 0a|UEs"; fast_pattern;
    reference:md5,8bea4ed23c54744533c32994e6c88deb;
    classtype:trojan-activity;
    sid:2054495; rev:1;
    metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_15, deployment Perimeter, malware_family VidarStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_15;
)

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