I think that all the URLs and packages are scanned with an antivirus before they're added to the Software Informer database. I have downloaded apps for many years and there were no threats like yours, but the Thermida notification is related to the packer used to compile the software. I can say this is safe and you should ignore the warning. Downloaded the program and installed it and it was working just fine. The antivirus didn't mention anything about the software as being infected.