alert udp $HOME_NET 1434 -> $EXTERNAL_NET any (msg:"ET DOS MC-SQLR Response Outbound Possible DDoS Participation"; content:"|05|"; depth:1; content:"ServerName|3b|"; nocase; content:"InstanceName|3b|"; distance:0; content:"IsClustered|3b|"; distance:0; content:"Version|3b|"; distance:0; threshold:type both,track by_src,count 30,seconds 60; reference:url,kurtaubuchon.blogspot.com.es/2015/01/mc-sqlr-amplification-ms-sql-server.html; classtype:attempted-dos; sid:2020305; rev:4; metadata:created_at 2015_01_23, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)