It was about a month before I was writing this that I noticed the anomaly. When I suddenly looked into my smartphone, I couldn't log in to OneDrive. I thought it was strange and opened the PC, but I couldn't log in in the same way. Instead, Windows 10 associates it with that Microsoft account, requiring account verification. All my PCs were in the same state.
When I tried to verify my account, they said there was a problem, and when I asked for support on the web, they said they would get back to me within 24 hours. It even hints at the possibility of violating the rules somehow.
To receive support, you will need another email address in addition to the account in question. This is because there is a possibility that locked mail cannot be received. Then, if you choose what kind of trouble it is from the options, you are done. By the way, this page is in English.
About 30 hours later, I received an English email from Microsoft Online Safety. It states that it has disabled the account for itself and others because it suspects files with a .URL extension are infected with malware. They said they would open the account for 48 hours so I could delete files from OneDrive.
The file you pointed to is one of the "favorites" I made in IE as long ago as I can remember. There's nothing wrong with opening it, the website just opens normally.
At this point, I can access OneDrive as before and my account status is fine. I opened the OneDrive site in my browser and used the search function to delete the favorite just in case.
So it worked fine for a while, but about 10 days later, the same problem occurred. Don't hesitate to apply for support again. It is said that there is a file that may be infected with malware this time. This time, an exe file is pointed out. I also found it using the search function and deleted it.
The next day, I received an email in Japanese. The signature is a foreigner's name, but I'm sure it's a person in charge who understands Japanese. The gist was that no code of ethics violations had occurred and no action had been taken to suspend service.
But then the same thing happens again. I deleted all files with the same name found by the search function, but it is pointed out again. When I opened the site and searched, the file was indeed detected, so I deleted the entire folder just in case.
The specified file is a small free utility program (340KB) that should be fine to sync with OneDrive. Of course, it is not shared with others. For the time being, no particular problems were detected even after checking the files copied to the USB memory with various security software.