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Windows 7: Unknown Virus?


24 Mar 2010   #1
Duke of Alinor

Win7 32 / 64 and XP 32 / 64 (on various other computers as well)
 
 
Unknown Virus?

My Win7 64 Pro suddenly got slower. With my system I never wait for anything, now I am typing at 2-3 CPS. I asked around online and they suggested I look at the Resource Monitor. I am getting 75 Memory Hard Faults per second. Memory Hard Hard Faults is somewhat of a misnomer. They are Windows Page faults. Booting a CD to bypass the OS and running Memtest then Prime95 8 hours each shows the hardware is rock solid.
One site suggested I have a virus and it is true I am also getting network activity I cannot account for. Win7 tools are cryptic and limited so I am not all that sure it is a virus. Running the Major Geeks Virus removal instructions changed nothing.

Any Ideas?
running AVG free and Malwarebytes


My System SpecsSystem Spec
24 Mar 2010   #2
Dinesh

Windows® 8 Pro (64-bit)
 
 

Hi, remove AVG and scan your system with avira or avast and hitman pro.
My System SpecsSystem Spec
24 Mar 2010   #3
The Blessed One

 

Dinesh is 100% correct about Avira or Avast. Not sure about Hitman Pro though as I think you may have to pay for it.

Please don't use AVG, it has poor detection and removal, even the new version 9.

Avira just released their new version 10 on 23rd March. Also Avast released their new version 5 recently. Both these pieces of software have excellent reviews.
My System SpecsSystem Spec
24 Mar 2010   #4
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

+1 regarding AVG, it is useless. I get the best scanning results with Superantispyware. And get rid of AVG and install Avast, Avira or MSE.
My System SpecsSystem Spec
24 Mar 2010   #5
Thorsen

Win7 Home Premium 64x
 
 

I usually have process explorer to view what is running
Process Explorer


autoruns to see what is ran at startup
Autoruns for Windows

And TCPView to see what processes are connecting to the net
TCPView for Windows
My System SpecsSystem Spec
24 Mar 2010   #6
Duke of Alinor

Win7 32 / 64 and XP 32 / 64 (on various other computers as well)
 
 

Thanks for moving my post.
logging to implement your ideas and one other - my PSU is only 510, my bad thinking this was the 1KW box so I will upgrade that as well as the anti-virus.
My System SpecsSystem Spec
24 Mar 2010   #7
Duke of Alinor

Win7 32 / 64 and XP 32 / 64 (on various other computers as well)
 
 

All done with hardware.
AVG has homesteaded, uninstall fails even in safemode. I used TaskManager to stop all the related services and still no uninstall.
My System SpecsSystem Spec
24 Mar 2010   #8
Corrine

Windows 7 & Windows Vista Ultimate
 
 

Hi, Duke of Alinor. Try the AVG Remover from AVG Antivirus and Security Software - Tools download
My System SpecsSystem Spec
24 Mar 2010   #9
Dinesh

Windows® 8 Pro (64-bit)
 
 

Quote   Quote: Originally Posted by The Blessed One View Post
Dinesh is 100% correct about Avira or Avast. Not sure about Hitman Pro though as I think you may have to pay for it.

Hi, Hitman Pro is paid but you get 1 month free trial.
My System SpecsSystem Spec
25 Mar 2010   #10
Duke of Alinor

Win7 32 / 64 and XP 32 / 64 (on various other computers as well)
 
 

OK, my mistake.
After taking all your good advice I still had problems. You guys know what you are talking about and the software side showed no leads. If it isn't software, has to be hardware?
On a lark I hooked up my trusty Fluke meter to the 12V buss and then the 5V. Both pulled low on heavy disk access. I had finally overloaded my 510W PC Power and Cooling. I installed a 1KW Corsair and all is well.

I am guessing the RAM volts got too low for my overclock and my slow system was due to faults there. Interesting that Win 7 did not just die and put up a BSOD.
When I ran Prime95 and Memtest from a CD there was much less stress on the system and all tested well. Win7 disk thrashing and graphic desktop takes a lot more power so problems showed up there.

Thanks for the help.
My System SpecsSystem Spec
Reply

 Unknown Virus?




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