Windows Defender gives me errors and warnings constantly!

I downloaded a custom keylogger made in Visual Basic. (To tinker with the code and see how it works, nothing malicious.) but suddenly Windows Defender gives me an alert.


I'm thinking it's just a harmless little mistake, so i deleted the files and cleaned my PC with MalwayreBytes, Spybot & Windows Defender.


MalwareBytes found 8 virus'.


Spybot found 5 virus'.


Windows Defender found 7 virus'.


I removed them all and it seemed fine now, but i was wrong.


Windows Defender keeps popping messages up saying that there is a new virus found:





1. The icon that shows when something is removed but the virus ISN'T removed.


2. It gives me an error in the "Status" bar and it doesn't have the "Removed" text in the "Anbefalet Handling" as it normally would have but rather "Quarantine".


3. Immediately when it has "cleaned" my PC, this message pops up telling me there's a virus found and i need to scan it again to remove it.


It's the same virus: HackTool:Win32/Passview


The weird thing is, i recovered my PC to an earlier stage, where i haven't downloaded it and it's still detecting. It's like nothing happened at all. I think Windows 8.1 kept my files, just not the programs i had installed.




When i click on "View all elements found", another 3 virus' are found:





They're all in "Quarantine" and not "Removed" as they should be.





I really need help because this is so f***ing fustrating.


EDIT: This is the log that Windows Defender produces:


containerfile:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{0500BD49-0C7E-42DA-AC8A-A9E76FB9881B}-Drops Logger By Jay.7z
containerfile:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{80E718F2-A291-4EB1-AAC1-8A329FB03862}-Drops Logger By Jay.7z
file:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{0500BD49-0C7E-42DA-AC8A-A9E76FB9881B}-Drops Logger By Jay.7z->Drops Logger By Jay/Stub/Stub/Resources/iepv.exe->(UPX)
file:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{80E718F2-A291-4EB1-AAC1-8A329FB03862}-Drops Logger By Jay.7z->Drops Logger By Jay/Stub/Stub/Resources/iepv.exe->(UPX)
webfile:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{0500BD49-0C7E-42DA-AC8A-A9E76FB9881B}-Drops Logger By Jay.7z|Simple File Sharing and Storage.
webfile:C:\ProgramData\Microsoft\Windows Defender\LocalCopy\{80E718F2-A291-4EB1-AAC1-8A329FB03862}-Drops Logger By Jay.7z|Simple File Sharing and Storage.

I would like to avoid a clean install of Windows 8.1, if possible.

Thanks in advance.

NOTE: These files are from a guy i trust, i'm sure it's not on purpose thatt he virus is there, he is a very good friend, so don't give me all of those "You should have used virtual box", "You should have scanned it first" comments and such.

Reboot in the Safe Mode and run a full virus scan. Those Trojans and HackTool are quite common in keylogging programs, just so you know.

You're suggesting i reboot in safe mode and run a full virus scan with Windows Defender, Spybot AND MalwareBytes?

Or just Windows Defender?

I need to be 100% sure because i don't want to make any mistakes.

It wouldn't hurt to run them all if you want to be sure. Viruses tend to invite other viruses into a compromised system. Running in safe mode may remove it.

Also, give your system a scan with TDSSKiller. Since it keeps coming back, there may be a rootkit involved.

TDSSKiller Rootkit Removal Utility Free Download | Kaspersky Lab US