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Contributor
steve2234
Posts: 19
Registered: ‎03-23-2012

Re: How to remove Trojan Horse ZeroAccess

Let me know what to do next.

 

Thanks!!!

Bot Obliterator
Quads
Posts: 13,245
Registered: ‎07-21-2008

Re: How to remove Trojan Horse ZeroAccess

Read all of this message first

 

Download Combofix http://www.bleepingcomputer.com/download/anti-virus/combofix


  • Ensure that Combofix is saved directly to the Desktop <--- Very important

  • Disable all security programs as they will have a negative effect on Combofix,
  • Close any open browsers and any other programs you might have running

Doiwnload the attached CFscript.txt, Now  drag the CFScript.txt into the ComboFix.exe  

 


  • If you are using windows XP It might display a pop up saying that "Recovery console is not installed, do you want to install?" Please select yes & let it download the files it needs to do this. Once the recovery console is installed Combofix will then offer to scan for malware. Select continue or yes.
  • When finished, it will produce a report for you. Please post the "C:\ComboFix.txt" for further review


****Note: Do not mouseclick combofix's window while it's running. That may cause it to stall or freeze ****

Note: ComboFix may reset a number of Internet Explorer's settings, including making it the default browser.
Note: Combofix prevents autorun of ALL CDs, floppies and USB devices to assist with malware removal & increase security.

*EXTRA NOTES*

  • If Combofix detects any Rootkit/Bootkit activity on your system it will give a warning and prompt for a reboot, you must allow it to do so.
  • If Combofix reboot's due to a rootkit, the screen may stay black for several minutes on reboot, this is normal
  • If after running Combofix you receive any type of warning message about registry key's being listed for deletion when trying to open certain items, reboot the system and this will fix the issue (Those items will not be deleted)

Quads

Contributor
steve2234
Posts: 19
Registered: ‎03-23-2012

Re: How to remove Trojan Horse ZeroAccess

Ok, ran Combofix and attached is the log file.

Bot Obliterator
Quads
Posts: 13,245
Registered: ‎07-21-2008

Re: How to remove Trojan Horse ZeroAccess

Why did you not have the script as the correct name as stated in the instructions, you had "CFscript.txt.URL"

 

Quads

Contributor
steve2234
Posts: 19
Registered: ‎03-23-2012

Re: How to remove Trojan Horse ZeroAccess

I don't know why or how the .URL extention ended up on the script file.  should I run throught the procedure again making sure the script is the correct name?

Bot Obliterator
Quads
Posts: 13,245
Registered: ‎07-21-2008

Re: How to remove Trojan Horse ZeroAccess

Yes.   It should end with .txt  (no .URL)  Combofix does not understand the name.

 

Quads

Contributor
steve2234
Posts: 19
Registered: ‎03-23-2012

Re: How to remove Trojan Horse ZeroAccess

Ok, I re-ran ComboFix and attached the log file.

Bot Obliterator
Quads
Posts: 13,245
Registered: ‎07-21-2008

Re: How to remove Trojan Horse ZeroAccess

That has taken care of the main Rootkit

 

Now time to scan the hole system to find anything else before using another program to do the final script cleanup

 

Please read carefully

 

 Please scan with ESET next   Using Internet Explorer


I'd like us to scan your machine with ESET OnlineScan

  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the Posted Image button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Posted Image to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Posted Image icon on your desktop.
  • Check Posted Image
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Under scan settings, check Posted Image and DON'T (NO) check Remove found threats (reason for this is we don't want something deleted and then Windows won't load).
  • Click Advanced settings and select the following:
    • Scan potentially unwanted applications
    • Scan for potentially unsafe applications
    • Enable Anti-Stealth technology
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • Copy and paste the resulting log in your next reply


If you think a log should have been generated then go to C:\Program Files\ESET\ESET Online Scanner\log.txt to find it. 

 

Quads

Contributor
steve2234
Posts: 19
Registered: ‎03-23-2012

Re: How to remove Trojan Horse ZeroAccess

Ok I ran the ESET Online Scanner, took almost 12 hours to complete and found 39 Infected Files.

 

San Results attched and Log attached.

Bot Obliterator
Quads
Posts: 13,245
Registered: ‎07-21-2008

Re: How to remove Trojan Horse ZeroAccess

I can deal with these in the final cleanup process.

 

Download OTL   hxxp://oldtimer.geekstogo.com/OTL.exe   (change the hxxp to http) save it to your Desktop.

Double click on OTL.exe to run it.  Right click OTL.exe and select run as administator for Vista and Win 7.

Click the Scan All Users checkbox.

Change file age to 60 days


Press the 

 

Quads