ET MALWARE DOILoader Activity M2 (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
pcre:"/^\/[A-Za-z0-9]{7}\/[0-9]{9}\.png$/";
http.header_names;
content:"|0d 0a|Connection|0d 0a|Host|0d 0a 0d 0a|"; bsize:22;
http.host;
content:"i.ibb.co"; bsize:8; fast_pattern;
target:src_ip;
Raw source ET MALWARE DOILoader Activity M2 (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE DOILoader Activity M2 (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/^\/[A-Za-z0-9]{7}\/[0-9]{9}\.png$/";
    http.header_names;
    content:"|0d 0a|Connection|0d 0a|Host|0d 0a 0d 0a|"; bsize:22;
    http.host;
    content:"i.ibb.co"; bsize:8; fast_pattern;
    reference:md5,7d71c897223fbc3c0b0ec324e27804e3;
    reference:md5,219e1bd62a715ebbe536ea581e0c1578;
    classtype:trojan-activity;
    sid:2050896; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_02_16, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_16;
    target:src_ip;
)

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