By | August 19, 2012 | 0 Comment

Trojan:Win32/WipMBR.A is a dangerous malware that can drop another threat onto the computer. This added malware can destroy master boot record (MBR) resulting to program malfunction and system crashes. In some instances, it makes computer inoperable. It renders the PC unusable due to wiped hard drive. Thus, only remaining solution is to reformat the disc and re-install Windows.

Trojan:Win32/WipMBR.A may spread the infection to network-attached computers by making a copy of the Trojan on a server. Though, there were no reports that the threat also targets the main server. Its focus is on workstation and individual computers. It uses the Internet to deploy the code globally in the fastest possible way. To accomplish this, Trojan:Win32/WipMBR.A targets vulnerable web sites and runs a drop-by-download script on them.

If Trojan:Win32/WipMBR.A runs on a computer, it will copy itself as trksvr.exe. It is placed under System32 folder of Windows. It operates discreetly by creating a service named TRKSVR that solely rely on a system service LANMANWORKSTATION in order to load at Windows start-up. With the Trojan code appended to legitimate system service, there is a tendency that it may evade antivirus software detection particularly if it has an outdated database.

There is a certain degree that Trojan:Win32/WipMBR.A can run a copy of the code on shared network resources. It means to carry out the same infection on computers that are attached to affected network. On this situation, firewall and antivirus program setup on each station plays a big part in preventing the virus from spreading.

Type Trojan
Sub-Type Rootkit/MBR
OS Affected Windows XP, Windows Vista, Windows 7

What are the Symptoms of Trojan:Win32/WipMBR.A Infection?

Constant display of warnings emerging from installed antivirus software implies the presence of Trojan:Win32/WipMBR.A. See sample screenshot below.

Trojan:Win32/WipMBR.A Alert

The threat will drop the following malicious files:

Follow these Procedures to Remove Trojan:Win32/WipMBR.A

Procedure 1: Start Computer in Safe Mode

Restart your computer in Safe Mode with Networking

- Turn on the computer and immediately press F8 on the keyboard to enter Windows Advanced Options screen. Make sure to hit the F8 button before Windows logo appears on the screen. Failure to do this will boot Windows normally. If that happens, please repeat the process until you successfully boot into Windows Advanced Options. Please see image below for reference.

- From the selections, choose Safe Mode with Networking. Please use keyboard's arrow up/down to navigate between selections and press Enter to proceed.Safe mode loads minimal driver and processes, thus, there is no chance that Trojan:Win32/WipMBR.A will run during this mode.

SafeMode Networking

Procedure 2: Scan and remove Trojan:Win32/WipMBR.A files and process with MalwareBytes Anti-Malware

To remove Trojan:Win32/WipMBR.A, download Malwarebytes Anti-Malware by clicking on the button below. This tool is effective in getting rid of Trojans, viruses and malware.

Download Trojan:Win32/WipMBR.A Removal Tool

1. After downloading, please install the program using the default settings.
2. At the end of the installation, please make sure that it will download necessary updates.
3. Once update has completed. The tool will launch.
4. Thoroughly scan the computer and remove all threats detected by this anti-malware program.

Double-check for bits and pieces of Trojan:Win32/WipMBR.A using Microsoft Safety Scanner

MS Safety Scanner is a free security tool that offers on-demand virus scanning and helps remove threats from the infected computer. It is a stand-alone program that works even with existing antivirus program.

Important: Each download of Microsoft Safety Scanner expires 10 days after the acquisition date. If this period lapses, you need to download the same program from the same location again. New download contains newer virus definition and database to detect and clean most recent viruses.

To use this tool in removing Trojan:Win32/WipMBR.A, please follow this procedure.

1. Download Microsoft Safety Scanner from official web site. Click on the button below.

Download MS Safety Scanner Button

2. Save the file to a convenient location such as Desktop.
3. Once the download completes, browse the folder and double-click on the file msert.exe. Icon for this file looks like this.

MS Safety Scanner Icon

4. If Windows prompts for a security warning and ask if you want to run the file, click on Run. For Windows Vista/7 users, you may right-click on the file and select Run as administrator from the selection.

Run as administrator

5. On initial run, the tool will display End User License Agreement, please accept the terms and click Next. Continue on the process until you reach the Scan Type window.
6. Select on Full scan to entire the system and detect any presence of Trojan:Win32/WipMBR.A. Then, click Next button to begin the scan process. Scanning may take a while, please be patient.

Full Scan

7. Once Microsoft Safety Scanner finished on scanning the computer, it will display the result. If it finds presence of Trojan:Win32/WipMBR.A and other malware, the tool removes them automatically.
8. Click on Finish button to close the tool.

Procedure 4: Remove Rootkit Trojan with Avast aswMBR

A Trojan often drops malware using an advance technology known as rootkit. It hides the installation of Trojan:Win32/WipMBR.A from your anti-virus program and injects malicious code to running Windows processes. To complete the clean-up process, you also need to scan and remove rootkit Trojan.

1. Download aswMBR from Avast server. Save it to your computer.

Avast Rootkit Scanner

2. Double-click on the file aswMBR.exe to run the program.
3. If it prompts you to download the latest Avast! virus definition, please click Yes. This is necessary to identify most recent version of the Trojan as well as hidden files of Trojan:Win32/WipMBR.A.

Updating aswMBR

4. Click on Scan button to start checking your computer for presence of rootkit Trojan and other viruses. It will display a message "Scan finished successfully" when done.

aswMBR Scan

5. Click Fix or FixMBR to start removing infection. If aswMBR contains the latest Avast! virus definition file, it will automatically clean infected files on your PC.

Protect your PC from Trojan:Win32/WipMBR.A or Similar Attack

Turn On Security Features of your Internet Browser

Internet Explorer - Activate SmartScreen Filter

Internet Explorer versions 8 and 9 has this feature called SmartScreen Filter. It helps detect phishing web sites and protect you from downloading malicious files online. You may have avoided Trojan:Win32/WipMBR.A virus if this has been active on your PC. To turn on SmartScreen Filter, follow these steps:

1. Please open Internet Explorer.
2. On top menu, select Tools (IE 9). For IE 8, please look for Safety menu.
3. Select SmartScreen Filter from the drop-down list and click on Turn on SmartScreen Filter.

IE SmartScreen Filter

4. Please restart Internet Explorer.

SEE MORE : Comprehensive steps to activate SmartScreen Filter

Google Chrome's Enable Phishing and Malware Protection

With Google Chrome's Phishing and Malware Detection feature, you will have lesser risks browsing the web. It will display a warning when the site you are trying to visit is suspicious. To enable Phishing and Malware Protection, please do these steps:

1. Open Google Chrome.
2. Click on the Customize and control Google Chrome (3-Bars Icon) located on top right corner of the browser.
3. Select Settings from the drop-down list.
4. Once on the settings page, click on Show advanced settings... at the bottom of the page to see the rest of the Chrome setup.
5. Locate Privacy section and mark 'Enable phishing and malware protection'.

Chrome Security Settings

6. Please restart Google Chrome. New settings keep your browser safe while surfing the web.

SEE MORE : Enable Phishing and Malware Protection on Google Chrome

Mozilla Firefox - Block Attack Sites and Web Forgeries

Phishing and Malware Protection is a built-in feature on Firefox version 3 or later. It warns you when a page you are trying to visit contains phishing content or an attack site designed to drop threats on the computer. To help you keep safe while browsing the Internet using Firefox, please follow this guide:

1. Open Mozilla Firefox browser.
2. On top menu, click on Tools. Then select Options from the list.
3. Select Security and put a check mark on the following items:

  • Warn me when sites try to install add-ons
  • Block reported attack sites
  • Block reported web forgeries

Firefox Security Settings

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