alert tcp $SQL_SERVERS 1433 -> $EXTERNAL_NET any (msg:"GPL SQL sa brute force failed login unicode attempt"; flow:from_server,established; content:"L|00|o|00|g|00|i|00|n|00| |00|f|00|a|00|i|00|l|00|e|00|d|00| |00|f|00|o|00|r|00| |00|u|00|s|00|e|00|r|00| |00|'|00|s|00|a|00|'|00|"; threshold:type threshold, track by_src, count 5, seconds 2; reference:bugtraq,4797; reference:cve,2000-1209; reference:nessus,10673; classtype:unsuccessful-user; sid:2103273; rev:4; metadata:created_at 2010_09_23, cve CVE_2000_1209, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)