ET MALWARE BlackRain User-Agent Observed

Query · suricata

flow:established,to_server;
http.user_agent;
content:"BlackRain"; bsize:9; fast_pattern;
threshold:type limit,seconds 300,count 1,track by_src;
Raw source ET MALWARE BlackRain User-Agent Observed · 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 BlackRain User-Agent Observed";
    flow:established,to_server;
    http.user_agent;
    content:"BlackRain"; bsize:9; fast_pattern;
    threshold:type limit,seconds 300,count 1,track by_src;
    reference:md5,7c711ea527dece150c377ba6ea303173;
    classtype:trojan-activity;
    sid:2049803; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_12_20, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_20;
)

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