alert tcp any any -> [$HOME_NET,$SQL_SERVERS] 1433 (msg:"ET INFO MSSQL SELECT SPID Query Observed"; flow:established,to_server; content:"S|00|E|00|L|00|E|00|C|00|T|00 20 00 40 00 40 00|S|00|P|00|I|00|D|00 3b 00|"; nocase; fast_pattern; endswith; reference:url,learn.microsoft.com/en-us/sql/t-sql/functions/spid-transact-sql?view=sql-server-ver16; classtype:misc-activity; sid:2039181; rev:1; metadata:affected_product Microsoft_SQL_Server, attack_target SQL_Server, created_at 2022_10_12, deployment Perimeter, deployment Internal, deployment Datacenter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_12;)