W32.Xpiro.D

Updated: March 20, 2013 Virus 1 Comment

This page contains detailed analysis on W32.Xpiro.D. To get rid of this Trojan, please use the removal guide below.

W32.Xpiro.D is a widely-spread virus that will steal sensitive information from an infected computer including user name and password. W32.Xpiro.D will infect executable files and  monitors web browser activity particularly if user pays a visit to online banking web site.

Alias: Troj/Agent-QVH, Troj/DwnLdr-IYH

Damage Level: Low

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

Characteristics
When user executes W32.Xpiro.D, it will create a single DLL file:
%UserProfile%\Local Settings\Application Data\wsr17zt32.dll

Next, the virus will search the local drives for .EXE files and injects it with a malicious code. An instance of the Trojan will load once user opens any of the infected files. The virus will monitor victim’s Internet activity and records the following information:

  • Current language settings
  • Software product IDs
  • System Volume Information
  • Windows version and system details

Additionally, the Trojan may also steal these data from your Internet browser:

  • Visited online banking web sites
  • User name, password and online banking account details
  • Internet cookies and saved information

Distribution
W32.Xpiro.D arrives on computers in several methods. Most of the popular method is to send Trojan through spamming method. It is usually attach to email messages. Users may also be infected when they execute a harmful link from instant messaging program. The link is originally sent from address of a friend on contact lists, but sender is unaware that Trojan on their computer is sending out malicious information. Most of the time, the message will contain tempting links on trending news and events.

Another means of propagation is through drive-by-download. Trojan can enter the computer by simply visiting a web site that is either legitimate but compromised or web pages that is harmful in nature.

How to Remove W32.Xpiro.D

1. Temporarily Disable System Restore (Windows Me/XP). [how to]
2. Open your antivirus application and update the virus definition file.

3. Start Windows in Safe Mode with Networking.
- From a power-off state, turn on the computer and press F8 on your keyboard repeatedly.
- Your computer will display Windows Advanced Boot Options menu. Please select Safe Mode with Networking.
- The system will now boot Windows and loads only necessary drivers and files.

4. Open your antivirus program and run a full system scan. After the scan, delete all infected items. If it cannot be deleted, better place them in quarantine. Once the scan is complete, please proceed with the next step.

Scan with Norton Power Eraser:

Additional virus removal tool like Norton Power Eraser provides deep scanning technology to eliminate other threats not detected by a normal virus scan. Use this tool with extra caution.

5. Go to this link and download Norton Power Eraser.
6. Once the download completes, double click on the file NPE.exe to run the program.
7. It will prompt for End User License Agreement, click on Accept to continue.
8. On NPE main window, click on Scan. Then select Exclude Rootkit Scan. Click on Continue to proceed.
9. Virus scanning may take some time. After running the scan, NPE will display the scan result.

Important! If there are any detected threats under Suspicious, remove the check mark. Only threats in Detected category are necessary to remove at this point. Make sure that you mark the Create System Restore Point before proceeding with the fix.

10. Now click on Fix to start removing the threats.
11. When done, Norton Power Eraser will restart the computer. Then after a reboot, it will initialize and display the eliminated threats.
12. You may now close Norton Power Eraser.

Alternative Removal Method for W32.Xpiro.D

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

If W32.Xpiro.D enters the computer, there is a big chance that Windows files, registry entries and other essential components are also infected. System Restore can reinstate clean system files by restoring the configuration to an earlier date. The method also replaces compromised files with a clean version. If you have a saved restore point before W32.Xpiro.D infiltrates the PC, we highly encourage you to execute this procedure if none of the above works. You may proceed with Windows System Restore, click here to see the full procedure.

Option 2 : W32.Xpiro.D manual uninstall guide

IMPORTANT! Manual removal of W32.Xpiro.D requires technical skills. Deleting system files and registry entries by mistake may result to total disability of Windows system. We advise you to perform a backup of registry before proceeding with this guide.

1. Kill any running process that belongs to W32.Xpiro.D.
- Press Ctrl+Alt+Del on your keyboard.
- When Windows Task Manager appears, look for W32.Xpiro.D files (refer to Technical Reference) and click End Process.

End Task

2. Delete all registry entries that belong to this malware.
- Press [Windows Key]+R on your keyboard.
- In the 'Open' dialog box, type regedit and press Enter. This will open registry editor.
- Find and delete registry entries as mentioned in Technical Reference section below.
- Close registry editor. Changes made will be save automatically.

Run Regedit

3. Scan the computer with antivirus program.
- Connect to Internet and open your antivirus software. Please update to obtain the latest database and necessary files.
- Restart the computer in Safe Mode.
- Just before Windows logo begins to load press F8 on your keyboard.
- On Windows Advanced Boot Options, select Safe Mode and press Enter.

4. Delete all files dropped by W32.Xpiro.D.
- While still in Safe Mode, search and delete malicious files. Please refer to 'Technical Reference'. Make sure that you execute 'End Task' first before deleting the file. Otherwise, the system will not let you perform this action.

Technical Reference

Associated Files and Folders: