KeyRep is a popular typing tool designed to help users type Sinhala characters correctly when using standard Sinhala fonts. Functionality:

You can find the software through several channels, though availability may vary:

Features a search screen that retrieves keys in milliseconds. Available on software hosting sites like Alternative Sinhala Typing Tools

“Probably a virus,” he muttered. But the thread had 47 replies, most of them strangely poetic.

He closed the program. Deleted the .exe . Then opened a new document and typed slowly, deliberately, without any repetition at all:

If you encountered "KeyRep" in a technical or error-log context, it might refer to java.security.KeyRep , a standard class in the Java Security API