ET WEB_SERVER Attempt To Access MSSQL xp_enumdsn/xp_enumgroups/xp_ntsec_enumdomains Stored Procedure Via URI

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SERVER Attempt To Access MSSQL xp_enumdsn/xp_enumgroups/xp_ntsec_enumdomains Stored Procedure Via URI";
    flow:established,to_server;
    http.uri;
    content:"EXEC"; nocase;
    content:"xp_"; nocase;
    content:"_enum"; nocase;
    pcre:"/(xp_enumdsn|xp_enumgroups|xp_ntsec_enumdomains)/i";
    reference:url,www.mssqlcity.com/Articles/Undoc/UndocExtSP.htm;
    reference:url,ferruh.mavituna.com/sql-injection-cheatsheet-oku/;
    reference:url,msdn.microsoft.com/en-us/library/ms173792.aspx;
    classtype:web-application-attack;
    sid:2009823; rev:8;
    metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2020_09_14;
)