ET MALWARE LIGHTWIRE Web Shell Activity Observed

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE LIGHTWIRE Web Shell Activity Observed";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dana-na/auth/url_default/compcheckresult.cgi?comp=comp&compid|3d|"; fast_pattern; startswith;
    reference:url,www.mandiant.com/resources/blog/investigating-ivanti-zero-day-exploitation;
    classtype:trojan-activity;
    sid:2050649; rev:1;
    metadata:affected_product Ivanti, attack_target Networking_Equipment, created_at 2024_01_31, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_31;
    target:dest_ip;
)