ET MALWARE Win32/BlackMagic Ransomware Payload Request (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/dll/microsoftupdatedefender"; startswith; fast_pattern;
http.host;
pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
Raw source ET MALWARE Win32/BlackMagic Ransomware Payload Request (GET) · Suricata
Esc
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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/BlackMagic Ransomware Payload Request (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dll/microsoftupdatedefender"; startswith; fast_pattern;
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    reference:url,blog.cyble.com/2022/12/07/a-closer-look-at-blackmagic-ransomware;
    classtype:trojan-activity;
    sid:2042520; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_08, deployment Perimeter, malware_family Win32_BlackMagic, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_08;
)

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