{keyword}');select Dbms_pipe.receive_message(chr(107)||chr(72)||chr(88)||chr(67),5) From Dual-- May 2026

: An Oracle subprogram typically used for communication between database sessions.

: A special dummy table in Oracle used for selecting results from functions that don't belong to a specific table. : An Oracle subprogram typically used for communication

: These CHR functions convert numeric ASCII values into characters to bypass security filters that might block specific words like "PIPE". 107 = k 72 = H 88 = X 67 = C Result: kHXC (the name of the pipe to listen to). 107 = k 72 = H 88 =

: A SQL comment used to ignore the rest of the original query, preventing syntax errors. CHR - Oracle Help Center

If you encountered this in a log or a search field, it is likely an automated probe by a security scanner or an attacker trying to identify vulnerabilities. CHR - Oracle Help Center