ET MALWARE Possible Vidar Stealer C2 Config In Steam Profile

Query · suricata

flow:established,to_client;
http.response_body;
content:"|3c|title|3e|Steam|20|Community|20 3a 3a 20|";
content:"http|3a 2f 2f|"; within:20;
content:"|7c 3c 2f|title|3e|"; fast_pattern;
pcre:"/http(?:s)?\x3a\x2f\x2f(?:[0-9]{1,3}\.){3}[0-9]{1,3}(?:\x3a[0-9]{1,5})?\x7c\x3c\x2ftitle\x3e/";
Raw source ET MALWARE Possible Vidar Stealer C2 Config In Steam Profile · Suricata
Esc
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 Possible Vidar Stealer C2 Config In Steam Profile";
    flow:established,to_client;
    http.response_body;
    content:"|3c|title|3e|Steam|20|Community|20 3a 3a 20|";
    content:"http|3a 2f 2f|"; within:20;
    content:"|7c 3c 2f|title|3e|"; fast_pattern;
    pcre:"/http(?:s)?\x3a\x2f\x2f(?:[0-9]{1,3}\.){3}[0-9]{1,3}(?:\x3a[0-9]{1,5})?\x7c\x3c\x2ftitle\x3e/";
    reference:md5,deb6e2ba0b5da298a176f135d0dbb902;
    classtype:trojan-activity;
    sid:2043334; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2023_01_18, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_05, reviewed_at 2024_01_26;
)

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