ET MALWARE Cryptojoker Checkin

Query · suricata

flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:".php?info="; fast_pattern;
content:"|3a 3a|"; distance:0;
http.uri.raw;
content:"|4f 4e 4c 25 35 43 6e|"; endswith;
http.header_names;
content:!"Accept";
content:!"Referer|0d 0a|";
content:!"User-Agent|0d 0a|";
Raw source ET MALWARE Cryptojoker Checkin · 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 Cryptojoker Checkin";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:".php?info="; fast_pattern;
    content:"|3a 3a|"; distance:0;
    http.uri.raw;
    content:"|4f 4e 4c 25 35 43 6e|"; endswith;
    http.header_names;
    content:!"Accept";
    content:!"Referer|0d 0a|";
    content:!"User-Agent|0d 0a|";
    reference:url,www.bleepingcomputer.com/news/security/the-cryptojoker-ransomware-is-nothing-to-laugh-about/;
    reference:md5,904b0888bfa02d200091fa8ad014d016;
    reference:md5,bca6c1fa9b9a8bf60eecbd91e08d1323;
    classtype:command-and-control;
    sid:2022333; rev:3;
    metadata:created_at 2016_01_06, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_17;
)

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