ET MALWARE Nuke Ransomware Checkin

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.header;
content:"Expect|3a 20|100-continue";
http.request_body;
content:"machine="; depth:8; fast_pattern;
pcre:"/^machine=[^&]+$/Pi";
http.content_type;
content:"application/x-www-form-urlencoded"; startswith;
http.header_names;
content:!"User-Agent|0d 0a|";
Raw source ET MALWARE Nuke Ransomware 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Nuke Ransomware Checkin";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.header;
    content:"Expect|3a 20|100-continue";
    http.request_body;
    content:"machine="; depth:8; fast_pattern;
    pcre:"/^machine=[^&]+$/Pi";
    http.content_type;
    content:"application/x-www-form-urlencoded"; startswith;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    reference:url,www.spyware-techie.com/nuke-ransomware-removal-guide;
    reference:md5,ff0e42146794f0d080df0467337b2d01;
    classtype:command-and-control;
    sid:2023335; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_10_12, deployment Perimeter, malware_family Ransomware, malware_family Nuke, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_05, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)

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