ET MALWARE MSIL/NoCry Ransomware Checkin Via Discord

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/NoCry Ransomware Checkin Via Discord";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks/";
    http.request_body;
    content:"|0d 0a|Content-Disposition|3a 20|form-data|3b 20|name=username|0d 0a|";
    content:"Content-Disposition: form-data|3b 20|name=content|0d 0a 0d 0a|**New Victim**|0d 0a|"; fast_pattern; distance:0;
    content:"ID|20 3a 20|"; distance:0;
    content:"Key|20 3a 20|";
    content:"Date&Time|20 3a 20|";
    http.header_names;
    content:!"Referer";
    reference:md5,682b432662affb2812ece6b940f5be51;
    classtype:trojan-activity;
    sid:2033099; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_06_07, deployment Perimeter, malware_family MSIL_NoCry, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_07, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)