Search body of incoming ticket

I want to set up an automated process that will search the body of an incoming ticket for a specific IP address, and reply back with a template response. I can do this if the information is in the Subject line, however not all come with the info in the subject line.

Is is possible to search the body of the incoming ticket for any info or keyword?

I have tried to use the search Description however that does not search the body of the ticket. Is this possible?

Michael J.