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Microsoft Security Intelligence
Published Nov 29, 2005 | Updated Sep 15, 2017

Trojan:Win32/Adclicker.K

Detected by Microsoft Defender Antivirus

Aliases: No associated aliases

Summary

Trojan:Win32/Adclicker.K is a Trojan that displays advertisements on the computer and has the effect of clicking the advertisements automatically, without user interaction. It can also connect to a remote server to download other adware or malicious software.
To recover manually from infection by Trojan:Win32/Adclicker.K, follow these steps: 
  1. Disconnect from the Internet.
  2. Restart your computer in safe mode.
  3. Delete the Trojan file.
  4. Restart your computer.
  5. Take steps to prevent re-infection.

Disconnect from the Internet

To help ensure that your computer is not actively infecting other computers, disconnect it from the Internet before proceeding. Print this Web page or save a copy on your computer; then unplug your network cable and disable your wireless connection. You can reconnect to the Internet after completing these steps.

Restart your computer in safe mode

To start your the computer in safe mode
  1. Remove all floppy disks and CDs from your computer, and then restart your computer.
  2. When prompted, press F8. If Windows starts without displaying the Please select the operating system to start menu, restart your computer. Press F8 after the firmware POST process completes, but before Windows displays graphical output.
  3. From the Windows Advanced Options menu, select a safe mode option.

Delete the Trojan file

To delete the Trojan file
  1. Click Start, and click Run.
  2. In the Open field, type C:\driverload  
  3. Click OK.
  4. Click Name to sort files by name.
  5. If a file named svchost.exe is in the list, delete it.
  6. On the Desktop, right-click the Recycle Bin and click Empty Recycle Bin.
  7. Click Yes to confirm.

Restart your computer

To restart your computer
  1. On the Start menu, click Shut Down.
  2. Select Restart from the drop-down list and click OK.

Take steps to prevent re-infection

Do not reconnect your computer to the Internet until the computer is protected from re-infection. See the "Preventing Infection" section for more information.
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