ET MALWARE CripStealer Data Exfiltration Attempt

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE CripStealer Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:"telegram.org"; endswith;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d|document|3b 20|filename|3d 22 5b|";
    content:"|5d 2d|Crip.bin|22 3b|"; within:50; fast_pattern;
    reference:md5,58de9a3596dcbd86d6e37e55e2f9572d;
    classtype:trojan-activity;
    sid:2068723; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_04_13, deployment Perimeter, deployment SSLDecrypt, malware_family Stealer, malware_family CripStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_04_13, mitre_tactic_id TA0009, mitre_tactic_name Collection, mitre_technique_id T1005, mitre_technique_name Data_from_local_system;
    target:src_ip;
)