Norton Internet Security / Norton AntiVirus

[caf0814]

Just last Saturday, my computer was infected with the Trojan Zeroaccess virus. NIS keeps popping up with notices saying that the virus has been blocked, and a restart is required to complete the fix (which ultimately doesn't work). The source of the infection is C:\Windows\assembly\GAC\Desktop.ini, which I cannot find under the assembly folder. After using Norton Power Eraser, Fix Zeroaccess, Malware Bytes and regular NIS scans (in both safe mode and regular modes), I'm out of options. Anyone have any recommendations?

Also, my computer is running on Windows 7 Home Premium, 32 bit.

Regards,

-C.

[Quads]

ANY other user other than the thread starter is not to use any instructions, scripts or proceedures,  The work though in cleaning a system is individual and only for that system due to a number of factors.

Please do not run any tools unless instructed to do so. 

• We ask you to run different tools in a specific order to ensure the malware is completely removed from your machine, and running any additional tools may detect false positives, interfere with our tools, or cause unforeseen damage or system instability. Do as the instructions ask nothing extra or run things twice
• If I ask a Question just answer it, don't run anything unless it states.
• Major steps used:

1. Find

2. Break

3. Destroy

4. Cleanup  (including system as a whole)

Please read every post completely before doing anything. 

• Pay special attention to the NOTE: lines, these entries identify an individual issue or important step in the cleanup process.

• Logs from malware removal programs (OTL is one of them) can take some time to analyze. I need you to be patient while I analyze any logs you post. Please remember, I am a volunteer, and I do have a life outside of these forum, (sometimes )
  
  
• Attention to detail is important! Since I cannot see or directly interact with your computer I am dependent on you to "be my eyes" and provide as much information as you can regarding the current state of your computer.

Do you have a Flash Drive??

Quads

[caf0814]

I do have a flashdrive available.

[Quads]

Read Slowly and all of it.

Please download http://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/  Download the 32bit version

Transfer it on to the Flash Drive

Enter System Recovery Options. 

To enter System Recovery Options from the Advanced Boot Options:

• Restart the computer.
• As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
• Use the arrow keys to select the Repair your computer menu item.
• Choose your language settings, and then click Next.
• Select the operating system you want to repair, and then click Next.
• Select your user account and click Next.

On the System Recovery Options menu you will get the following options:

Startup Repair
System Restore
Windows Complete PC Restore
Windows Memory Diagnostic Tool
Command Prompt

• Select Command Prompt
• In the command window type in notepad and press Enter.
• The notepad opens. Under File menu select Open.
• Select "Computer" and find your flash drive drive letter and close the notepad.
• In the command window type e:\frst.exe (for x64 bit version type e:\frst64) and press Enter
  Note: Replace letter e with the drive letter of your portable hard drive
• The tool will start to run.
• When the tool opens click Yes to disclaimer.
• Press Scan button.
• It will make a log (FRST.txt) on the flash drive.  restart the system and load Windows Pleaseattach the log in  your reply back..

Quads

[caf0814]

Here's the log. One thing I want to note is my flash drive letter appeared as "F" while accessing it in Repair mode. Accessing it through regular means on Windows, my flash drive is now represented as a "G" drive. Not sure if this changes anything necessarily, but just wanted to throw that out there.

[Quads]

Uninstall

Malwarebytes

Quads

[caf0814]

"Messages file: C:\Program Files\Malwarebytes' Anti-Malware\unins000.msg" is missing. Please correct the problem or obtain a new copy of the program."

I did take the .exe file of Malware bytes and use it on my flash drive. Should I reinstall it /get another free download onto my desktop and then uninstall it?

[Quads]

I will move most of it

Step 2

Download the script attached, needs to be the same file name as well (fixlist.txt), Copy across to flash drive

NOTE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

Now please enter System Recovery Options again. Like previously

• Select Command Prompt
• In the command window type in notepad and press Enter.
• The notepad opens. Under File menu select Open.
• Select "Computer" and find your flash drive letter and close the notepad.
• In the command window type e:\frst.exe or frst64.exe and press Enter
  Note: Replace letter e with the drive letter of your flash drive.
• The tool will start to run.
• When the tool opens click Yes to disclaimer.
• Press the Fix button just once and wait.
• The tool will make a log on the flashdrive (Fixlog.txt) please post it to your reply (attach).

Quads

[caf0814]

Log is attached.

[Quads]

Step 3. 

Please read carefully 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  (Not in the Download(s) or Temp folders)
  
  
• Disable all security programs as they will have a negative effect on Combofix, Disabled for say 1 hour or more.
• Close any open browsers and any other programs you might have running

Right click the combofix.exe on the desktop and select from the menu "Run as Administrator"

• 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