My AV scanner says raccoon.exe contains a virus. Is that true?

Anti Virus software is snake oil and generally a total waste of time and money. The raccoon binary has never been near a windows system on which it could have gotten infected.

The reason why your AV software gave alarm is likely because the .exe file is actually a wrapper around a Java program which got misinterpreted as "has something to hide".

If you want to avoid further false positives, simply use the .jar instead of the .exe version of Raccoon.