Hi guys,
It’s the first time that I open a thread on this forum after using Avast since 2005 without any issue. I think that I’ve found a very dangerous thing on Avast. Let me explain.
On 18/06/2015 I decided to update Avast (software update) at 5 AM. It was very late. I had just returned home and I found out that my PC was still running so I turned on my monitor and I decided to upgrade Avast quickly before going to sleep. I did nothing more.
Since that day I started to notice that the temperatures of my PC were really bizarre. During the first week I thought that it was due to a combination of dust & summer then I left the side panel of the case open and damn, the entire case was hot like hell in idle with no process running. It’s true that I’ve OC on CPU (i5 760 @ 3.4Ghz) & GPU (R9 280 @ 1200Mhz GPU @ 6300Mhz memory) but I have liquid cooling and 9 fans all running at full speed trying to lower the temperatures with no success.
Today I decided to turn off all my fans, run liquid cooling with the lowest profile and start my PC just staying on desktop. For 20 minutes CPU was at 0% usage with 45° and GPU 0% with 37° then after 20 minutes it happened. GPU 100% usage and more than 75° all due to a “steam.exe” application. Of course it wasn’t steam. It was a Bitcoin mining virus running on startup with 20 minutes delay on my GPU installed in \AppData\Roaming\Skype\Reversed.
Said that here’s the dangerous part of the problem. I think that this virus has been installed with/by Avast. I’ve updated Avast on 18/06/2015 at 05:12 and the virus has been installed on 18/06/2015 at 05:14! Like I said before in that day I have only upgraded Avast and nothing more. There’s nothing else in Windows log. I just had to restart the PC in order to upgrade Avast and on Windows restart (2 minutes later) the virus was there.
What is going on? :-\