Search text in stored procedure in SQL Server

Question

I want to search all of my database's stored processes for a specific text. I employ SQL as follows:

SELECT DISTINCT
       o.name AS Object_Name,
       o.type_desc
FROM sys.sql_modules m
       INNER JOIN
       sys.objects o
         ON m.object_id = o.object_id
WHERE m.definition Like '%[ABD]%';

I want to look for [ABD] in every stored procedure, even the ones with square brackets, but it's not returning the right information. How can I modify my search to accomplish this?