W32.Aboc

W32.Aboc may spread on computers through removable USB devices. In order to remove this virus, you need to scan the PC with an effective antivirus program.

W32.Aboc is a computer virus that will propagate on USB removable drives and infects the system with another virus called W32.Virut.CF. W32.Aboc is also capable of downloading additional threats from a remote server and executes it on the affected computer. By making some changes on the system, this virus may be able to hide its presence and avoid antivirus detection.

When executed, the worm will drop several files under Windows folder. Please refer to Malicious Files section for a complete list. Next, W32.Aboc will adjust the registry to gain start-up spot on Windows. It will add some entries that will able to load the virus each time you start Windows.

To allow network access, the virus will also tweak registry and modify the firewall for this sole purpose. Then, it modifies windows keys to avoid own removal. Also by tweaking the registry, the virus will disable your Internet browser’s proxy settings.

W32.Aboc then attempts to establish a connection with an array of domains to which it will download additional threat. It also infects legitimate Windows files like logonui.exe and wuaucldt.exe

W32.Aboc virus spread normally through spam email messages. It is typically attached as a valuable file to a spam email that normally disguises as promotional items from a known brand. Locally, it will transmit via removable drives such as memory stick, flash drive, or external hard disk.

Damage Level: Low

Systems Affected: Windows 9x, 2000, XP, Vista, Windows 7

Technical Details and Additional Information:

Other functionalities of this Trojan:
– Hide its presence on the system
– Disable proxy access on Internet Explorer
– Modify Windows Registry

Malicious Files Added by W32.Aboc:
%SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\Startup\SYSTEMIL2.EXE
%Windir%\SYSTEMIL.EXE
%SystemDrive%\SYSTEMIL.EXE
%SystemDrive%\Pictures.exe
%SystemDrive%\Documents.exe
%SystemDrive%\Photos.exe
%SystemDrive%\Games.exe

Associated Windows Registry Entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”SystemIL” = “%Windir%\SYSTEMIL.EXE”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\”SystemIL” = “%Windir%\SYSTEMIL.EXE”
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\”%System%\winlogon.exe” = “%System%\winlogon.exe:*:enabled:@shell32.dll,-1”

How to Remove W32.Aboc

Systematic procedures to get rid of the threat are presented on this section. Make sure to scan your computer with suggested tools and scanners.

NOTE: We suggest that you PRINT this guide. There are steps that we may have to restart the computer in order to successfully remove the threat.

Step 1 : Scan and remove W32.Aboc with MalwareBytes Anti-Malware

This guide requires a tool called Malwarebytes' anti-malware. It is a free tool designed to eradicate various computer infections including W32.Aboc. MBAM scanner and malware removal tool is distributed for free.

1. In order to completely remove W32.Aboc, it is best to download and run the recommended tool. Please click the button below to begin download.

Download Tool

2. After downloading, double-click on the file to install the application. If you are using Windows Vista or higher version, right-click on the file and select 'Run as administrator' from the list.

3. When User Account Control prompts, please click Yes to proceed with the installation.

4. Follow the prompts and install as 'default' only. There are no changes needed during the installation process.

5. Before the installation procedure ends, MalwareBytes Anti-Malware will prompt if you want to launch the application. Please leave the check mark on Launch Malwarebytes Anti-Malware.

Launch MBAM

6. Lastly, click the Finish button.

7. Malwarebytes Anti-Malware will launch for the first time. It is necessary to proceed with database update.

8. Remove all media such as Memory Card, CD, DVD, and USB devices. Then, restart the computer.

Boot in Safe Mode on Windows XP, Windows Vista, and Windows 7 system
a) Before Windows begins to load, press F8 on your keyboard.
b) It will display the Advanced Boot Options menu. Select Safe Mode.

Start computer in Safe Mode using Windows 8 and Windows 10
a) Close any running programs on your computer.
b) Get ready to Start Windows. On your keyboard, Press and Hold Shift key and then, click on Restart button.
c) It will prompt you with options, please click on Troubleshoot icon.
d) Under Troubleshoot window, select Advanced Options.
e) On next window, click on Startup Settings icon.
f) Lastly, click on Restart button on subsequent window.
g) When Windows restarts, present startup options with numbers 1 - 9. Select "Enable Safe Mode with Networking" or number 5.

Startup Options

h) Windows will now boot on Safe Mode with Networking. Proceed with virus scan as the next step.

9. Once Windows is running on Safe Mode, find the icon of MalwareBytes Anti-Malware. Double-click to launch the program.

10. Choose Threat Scan on scanner's console to ensure that it thoroughly check the PC for any presence of W32.Aboc and other forms of threats. Click the Start Scan button to begin.

MBAM Scan

11. Once the scan has completed, Malwarebytes Anti-Malware will issue a list of identified threats. Mark all threats and click on Remove Selected.

MBAM Scan Finish

12. If it prompts to restart the computer, please reboot Windows normally.

Step 2 : Run a scan with your anti-virus program/a>

1. Repeat the process of starting Windows in Safe Mode with Networking.
2. Open your antivirus program and download the most recent update. This method ensures that your antivirus program can detect even newer variants of W32.Aboc.

Updating your antivirus software is a one-click process. Please refer to your software manual for complete instructions.

3. Once updating is finished, run a full system scan on the affected PC. After the scan, delete all infected items. If unable to clean or delete, better place the threat in quarantine.

Step 3: Run another test with online virus scanner

Another way to remove W32.Aboc without the need to install additional antivirus software is to perform a thorough scan with free online virus scanner. It can be found on websites of legitimate antivirus and security provider.

1. Click the button below to proceed to the list of suggested Online Virus Scanner. Choose your desired provider. You can run each scan individually, one at a time, to ensure that all threats will be removed from the computer. This may require plug-ins, add-on or Activex object, please install if you want to proceed with scan.

Online Virus Scan

2. After completing the necessary download, your system is now ready to scan and remove W32.Aboc and other kinds of threats.
3. Select an option in which you can thoroughly scan the computer to make sure that it will find and delete entirely all infections not detected on previous scan.
4. Remove or delete all detected items.
5. When scanning is finished, you may now restart the computer in normal mode.

Alternative Removal Procedures for W32.Aboc

Option 1 : Use Windows System Restore to return Windows to previous state

During an infection, W32.Aboc drops various files and registry entries. The threat intentionally hides system files by setting options in the registry. With these rigid changes, the best solution is to return Windows to previous working state is through System Restore.

To verify if System Restore is active on your computer, please follow the instructions below to access this feature.

How to Access System Restore on Windows XP, Windows Vista, and Windows 7

a) Go to Start Menu, then under 'Run' or 'Search Program and Files' field, type rstrui.
b) Then, press Enter on the keyboard to open System Restore Settings.

rstrui-win7

How to Open System Restore on Windows 8

a) Hover your mouse cursor to the lower left corner of the screen and wait for the Start icon to appear.
b) Right-click on the icon and select Run from the list. This will open a Run dialog box.
c) Type rstrui on the 'Open' field and click on OK to initiate the command.

rstrui-win8

If previous restore point is saved, you may proceed with Windows System Restore. Click here to see the full procedure.

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About Marco Mathew

Marco Mathew works as Windows Network administrator before establishing precisesecurity.com. Now, Marco is dedicating full-time to help computer users' fight viruses, malware, trojan, worms, adware, and potentially unwanted programs.

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