ET MALWARE Observed Fake Updates Page Inbound

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Observed Fake Updates Page Inbound";
    flow:established,to_client;
    http.response_body;
    content:"<title>CloudFlare</title>";
    content:"const|20|textToCopy"; fast_pattern;
    content:"mshta|20|http"; distance:0;
    content:"navigator.clipboard.writeText";
    classtype:trojan-activity;
    sid:2069666; rev:1;
    metadata:affected_product Windows_Client, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_06_05, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, updated_at 2026_06_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer;
    target:dest_ip;
)