ET WEB_SPECIFIC_APPS ReCrystallize Server DownloadFile.aspx Abuse

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS ReCrystallize Server DownloadFile.aspx Abuse";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/RecrystallizeServer/DownloadFile.aspx?filename|3d|"; startswith; fast_pattern;
    pcre:"/^(?:[a-z]\x3a\x5c|http|\x2f\x2f|\x5c\x5c)/Ri";
    reference:url,sensepost.com/blog/2024/from-discovery-to-disclosure-recrystallize-server-vulnerabilities/;
    classtype:trojan-activity;
    sid:2051963; rev:1;
    metadata:affected_product Web_Server_Applications, attack_target Web_Server, tls_state TLSDecrypt, created_at 2024_04_09, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_04_09;
    target:dest_ip;
)