Okay, we'll chalk it off to a misunderstanding.
See, like in your case where as you mention, English is not your 1st language ...
In my defense, here and there I see replies of "Google is your friend" ... "You should have Googled it" ... "Some people are too lazy to use Google." Well, like in my case, while I consider myself knowing a little bit about avast and arguably a little bit more than the REGULAR average person about computers ... I'm definitely not remotely a Geek or even a sub Geek. So my knowledge about computers is not going to remotely be on the same level as that of the regular helpers here.
So, just because I can Google something up about computers, doesn't necessarily mean I'm always going to be able to understand what I found. Sometimes I WILL understand it and other times I won't.
For example: You mentioned uploading to VirusTotal. So I went, "Okay, let me bring up VirusTotal." (I HAVE used it before.) I then saw the 3 tabs --- File, URL and Search. I then wondered, "Okay ... so how does a System Restore Point of 'Installed Windows XP Wdf01009' fit into one of those 3 options?" It was of course not a URL and using the Search option took me nowhere. So, I figured maybe I was supposed to use the Windows Search function and find where that mysterious Wdf01009 was. I did find it. But yeah, my lower level of computer knowledge didn't allow me to automatically make the connection that I could use VirusTotal to check something out that I was seeing in a System Restore Point.
Anyway, issue resolved. Carry on.