ET MALWARE Blackmagic Ransomware Checkin Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/api/public/api/test?ip="; fast_pattern; startswith;
content:"-&status="; distance:0;
content:"&cnt="; distance:0;
content:"&type="; distance:0;
content:"&num="; distance:0;
http.header_names;
content:"|0d 0a|Host|0d 0a|Content-Length|0d 0a 0d 0a|"; bsize:26;
target:src_ip;
Raw source ET MALWARE Blackmagic Ransomware Checkin Activity (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 Blackmagic Ransomware Checkin Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/api/public/api/test?ip="; fast_pattern; startswith;
    content:"-&status="; distance:0;
    content:"&cnt="; distance:0;
    content:"&type="; distance:0;
    content:"&num="; distance:0;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Content-Length|0d 0a 0d 0a|"; bsize:26;
    reference:md5,bf647a66de004ae56ece7f18a8dfa0ed;
    reference:md5,7b1fd05e9db5369c5b7ef82080fd0ca8;
    reference:url,twitter.com/siri_urz/status/1597952384709558272;
    classtype:trojan-activity;
    sid:2041453; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_12_01, deployment Perimeter, malware_family BlackMagic, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_01, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
    target:src_ip;
)

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