alert tcp $EXTERNAL_NET any -> $SQL_SERVERS 139 (msg:"GPL SQL shellcode attempt"; flow:to_server,established; content:"9 |D0 00 92 01 C2 00|R|00|U|00|9 |EC 00|"; classtype:shellcode-detect; sid:2100692; rev:7; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)