ET MALWARE Win32/Vidar Variant/Mars Stealer Resources Download

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.response_body;
content:"|50 4b|"; startswith;
content:"softokn3.dll"; distance:28; within:12; fast_pattern; bsize:>15000;
Raw source ET MALWARE Win32/Vidar Variant/Mars Stealer Resources Download · 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 MALWARE Win32/Vidar Variant/Mars Stealer Resources Download";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|50 4b|"; startswith;
    content:"softokn3.dll"; distance:28; within:12; fast_pattern; bsize:>15000;
    reference:md5,880924e5583978c615dd03ff89648093;
    reference:url,twitter.com/X__Junior/status/1528046444963323904;
    classtype:trojan-activity;
    sid:2036654; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_05_23, deployment Perimeter, malware_family Win32_Vidar, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_23, reviewed_at 2024_12_02;
)

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