The link referenced by TsVK! gives the following info......and I have reproduced the last post as well.
I have ESET NOD32 with it i deleted all the malware files. But i believe the malware messed with my registries or something. The Keyboard HID driver would not function properly. Thus if i removed the driver my keyboard did nothing, but when i reinstalled the HID drive, the calculator app was the only thing that opened on key press.
I actually ended up fixing the issue. With Nod32 i took a SysInspection Log while everything was messed up.. THEN I System restored to before the crazy stuff happened (a few days before when i was doing updates) and everything started working fine again! So i took another SysInspectionLog and within NOD32 compared both of them. Registries had been messed with, There was a file called AUTOKMS.exe that caused issues somehow, and some other stuff with the drivers kbhdhid or whatever theyre called (keyboard.ini?)..
Right now all i can say is do a quick system restore before everything started happening and you should be all set.
Given that you have no restore points, and that there is a question mark hanging over the infection possibility, it would be in your best interests to rule that out.
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Condobloke ...Outback Australian
fed up with Windows antics...??....LINUX IS THE ANSWER....I USE LINUX MINT 18.3 EXCLUSIVELY.
Microsoft gives you Windows, Linux gives you the whole house...
It has been said that time heals all wounds. I don't agree. The wounds remain. Time - the mind, protecting its sanity - covers them with some scar tissue and the pain lessens, but it is never gone. Rose Kennedy