ET MALWARE CryptoWall CryptoWall 3.0 Check-in

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri.raw;
content:"http|3a 2f 2f|proxy"; depth:12; fast_pattern;
http.header;
content:"i2p|0d 0a|";
http.header_names;
content:!"|0d 0a|Accept-";
content:!"Referer|0d 0a|";
Raw source ET MALWARE CryptoWall CryptoWall 3.0 Check-in · 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 CryptoWall CryptoWall 3.0 Check-in";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri.raw;
    content:"http|3a 2f 2f|proxy"; depth:12; fast_pattern;
    http.header;
    content:"i2p|0d 0a|";
    http.header_names;
    content:!"|0d 0a|Accept-";
    content:!"Referer|0d 0a|";
    reference:md5,3c53c9f7ab32a09de89bb44e5f91f9af;
    classtype:trojan-activity;
    sid:2020233; rev:3;
    metadata:created_at 2015_01_21, signature_severity Major, updated_at 2020_05_14;
)

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