ET MALWARE MSIL.Kraken.v2 HTTP Pattern

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Kraken web request agent/";
http.header_names;
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE MSIL.Kraken.v2 HTTP Pattern · 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 MSIL.Kraken.v2 HTTP Pattern";
    flow:established,to_server;
    http.user_agent;
    content:"Kraken web request agent/";
    http.header_names;
    content:!"Referer";
    content:!"Accept";
    reference:md5,e1aee9ef64d71e0c9bb8eee9742efdef;
    reference:url,securingtomorrow.mcafee.com/mcafee-labs/fallout-exploit-kit-releases-the-kraken-ransomware-on-its-victims/;
    classtype:trojan-activity;
    sid:2026588; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_11_09, deployment Perimeter, malware_family Ransomware, malware_family Kraken_Ransomware, confidence High, signature_severity Major, tag Ransomware, updated_at 2020_08_27;
)

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