bogus files appearing in my PC

[jimrich]

OS Version: Microsoft Windows 8.1, 64 bit
Processor: AMD A4-5300 APU with Radeon(tm) HD Graphics, AMD64 Family 21 Model 16
RAM: 3263 Mb
Graphics Card: AMD Radeon HD 7480D, 768 Mb
Hard Drives: C: Total - 926629 MB, Free - 874877 MB; F: Total - 305243 MB, Free - 15515 MB;
Motherboard: LENOVO,
Antivirus: Windows Defender was strangely disabled Now running Avast anti-virus app.

Hello:
Please help me if you can..........
Something disabled Windows Defender and is letting very large bogus files onto my computer so I installed the latest free version of Avast. I am using win 8.1 in a Lenovo computer. I just discovered that some mystery files are being inserted into my computer by the dozens and these mystery files are extremely large so the hard drive was almost filled up!
Here is what I found by using an app called WinDirStat:
the mystery files look like this: 12754694899610736661_2853498758043839360_4480_4480 ~ 960 MB
and this: ver1
they are sent to this location in my computer: C:\$Recycle.Bin\S-1-5-21-2712117882-3860235528-2112810399-1002

When I open the mystery file with FIREFOX, it looks like this:
file//Crecyclebin/12754694899610736661_2853498758043835520_3840_3840
which is an application/octet-stream (960 MB) from C:\recyclebin

Note: file opens in Firefox but there is no information in the page and, after selecting Ctl - U, there is NO code at all!

These files are still coming into my computer after installing Avast so PLEASE help me if you can. I can catch these files with the help of WinDirStat but want to stop them altogether. I believe a virus has invaded my PC and had hoped that Avast would catch and kill it but not so far!
Thanks,
jim

 

[jimmysmitty]

http/www.bleepingcomputer.com/forums/t/519942/virus-that-fills-up-c-drive-with-unknown-files-help-required/

You can try Malwarebytes and some other AV programs but I highly suggest reading that thread. Bleeping Computer is pretty damn good when it comes to viruses.

 

[Saberus]

Try booting to safe mode and running malwarebytes, might be malware instead of a virus.

 

[jimrich]

Try booting to safe mode and running malwarebytes, might be malware instead of a virus.

Looks like malwarebytes, avast and WinDirStat has fixed everything so thank you for your input. jim