ET MALWARE Win32/Blacklegion Ransomware CnC Response

Query · suricata

flow:established,to_client;
http.response_body;
content:"|22|first|5f|name|22 3a 22|Blacklegion|22 2c 22|username|22 3a 22|blacklegion|5f|support"; fast_pattern;
content:"|22|text|22 3a 22|Unique|20|ID|3a|";
content:"Personal|20|ID|3a|";
Raw source ET MALWARE Win32/Blacklegion Ransomware CnC Response · 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/Blacklegion Ransomware CnC Response";
    flow:established,to_client;
    http.response_body;
    content:"|22|first|5f|name|22 3a 22|Blacklegion|22 2c 22|username|22 3a 22|blacklegion|5f|support"; fast_pattern;
    content:"|22|text|22 3a 22|Unique|20|ID|3a|";
    content:"Personal|20|ID|3a|";
    reference:md5,9e37d89756eee8d24edecde880c2711a;
    reference:url,twitter.com/suyog41/status/1736713012747419681;
    classtype:trojan-activity;
    sid:2049719; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_12_18, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_Blacklegion, performance_impact Significant, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_18;
)

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