JS:Downloader.cpa (trj)

[REDACTED]

Avast suddenly found this in my Chrome cache and moved it to the chest. Avast picked it up as soon as I started a Malwarbytes full scan.

This was after I rebooted my system and thus Windows 8, because some programs were running slow. My Windows 8 hung/froze on the 'restarting' purple screen with wheel spinning forever. I had to shut down PC by holding down physical power button. Windows started up fine upon reboot and everything was running fast, but as I started a Malwarebytes scan, Avast found the above virus.

I had used Chrome briefly ten minutes prior to reboot. And then briefly again several hours before that.

I can't find much about this trojan via a Google search.

Any help would be appreciated.

[Rednose]

Hi JakeBanes3, welcome to the forum

Please follow this turtorial https://forum.avast.com/index.php?topic=53253.0 and attach the requested logs in your next reply.
As soon as an expert is online and available he/she will help you.

Greetz, Red.

[Pondus]

I can't find much about this trojan via a Google search.

It is a java script from a infected website ... since Malwarebytes / avast did not find anything more i guess it was not able to do its job ... download more crap

but you can never be 100% sure so if you want a check, follow the guide Rednose gave link to

[REDACTED]

Cool, thanks. Windows 8 Smartscreen is warning against Farbar Recovery Scan Tool. What's that about?

[Pondus]

its normal, just ignore

[REDACTED]

I'm having problems with FarBar but will this aswMBR log help you help me for now?

[Rednose]

Hi JakeBanes3

As you are having problems with Farbar, I have asked essexboy to assist you.
Wait for his instructions.

Greetz, Red.

[essexboy]

Hi download and run FRST ..  If smart screen tries to block it  then select run and accept the warnings.  It only does this on the 32 bit version for some reason


Please download Farbar Recovery Scan Tool and save it to your Desktop.
 
Note: You need to run the version compatible with your system. If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.
 

• Right click to run as administrator (XP users click run after receipt of Windows Security Warning - Open File). When the tool opens click Yes to disclaimer.
  
• Select  additions at the bottom
• Press Scan button.
  
  
• It will produce a log called FRST.txt in the same directory the tool is run from. 
  
• Please attach both logs generated.

[REDACTED]

Thanks, I couldn't find the logs, but then I found them lurking on my cluttered desktop. I redacted some of the file names replacing them with ******* because they were document files/folders with full names of my business clients.

[essexboy]

Looks as though it was blocked, we will empty the temp files to be sure though

CAUTION :  This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:
 

CreateRestorePoint:
FF user.js: detected! => C:\Users\Endre\AppData\Roaming\Mozilla\Firefox\Profiles\qnboj71v.default\user.js [2015-07-15]
RemoveProxy:
EmptyTemp:
CMD: bitsadmin /reset /allusers

 
Save this as fixlist.txt, in the same location as FRST.exe

Run FRST and press Fix
On completion a log will be generated please post that

THEN

Please download AdwCleaner by Xplode onto your desktop.

• Close all open programs and internet browsers.
• Double click on AdwCleaner.exe to run the tool.
  
• Click on Scan.
  
• After the scan is complete click on "Clean"
• Confirm each time with Ok.
  
• Your computer will be rebooted automatically. A text file will open after the restart.
• Please post the content of that logfile with your next answer.
• You can find the logfile at C:\AdwCleaner[Cx].txt as well.
  

[REDACTED]

How long should it take to delete temp. Not sure if FarBar has frozen or not.

[essexboy]

It really depends on when the last time that you cleared them was.  It should take no more than 5 minutes at a push

[REDACTED]

Cool, thanks, it worked.

I've attached the AdwCleaner log.

[essexboy]

Should now be squeaky clean .. Any problems apparent

[REDACTED]

Great, thanks for your help. It's running smooth.