ET MALWARE Prince Ransomware GET Wallpaper M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Prince Ransomware GET Wallpaper M1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/RfsCOES.png"; endswith; fast_pattern;
    http.host;
    content:"i.imgur.com";
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|";
    reference:url,research.checkpoint.com/2025/yurei-the-ghost-of-open-source-ransomware/;
    reference:url,github.com/oakkaya/Prince-Ransomware;
    classtype:trojan-activity;
    sid:2064816; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, affected_product Windows_8, affected_product Windows_10, attack_target Client_Endpoint, created_at 2025_09_19, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, tag Go, tag Prince, tag Yurei, updated_at 2025_09_19, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)