ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"form-data|3b 20|name=|22|token|22 0d 0a 0d 0a|";
content:"form-data|3b 20|name=|22|build_id|22 0d 0a 0d 0a|"; fast_pattern; distance:0;
content:"form-data|3b 20|name=|22|mode|22 0d 0a 0d 0a|";
flowbits:set,ET.stealc.plugins;
threshold:type limit,seconds 300,count 1,track by_src;
target:src_ip;

Rule dependencies

Feeds into

  • 4 rules read ET.stealc.plugins · view all
Raw source ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M1 · 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 Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"form-data|3b 20|name=|22|token|22 0d 0a 0d 0a|";
    content:"form-data|3b 20|name=|22|build_id|22 0d 0a 0d 0a|"; fast_pattern; distance:0;
    content:"form-data|3b 20|name=|22|mode|22 0d 0a 0d 0a|";
    flowbits:set,ET.stealc.plugins;
    threshold:type limit,seconds 300,count 1,track by_src;
    reference:md5,15759ca0c25955989b2ff7a8c151f6f8;
    classtype:trojan-activity;
    sid:2049087; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_06, deployment Perimeter, malware_family Stealc, malware_family VidarStealer, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_10, reviewed_at 2023_11_06;
    target:src_ip;
)

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