Backdoor.Bla.Trojan - Removal

Risk Level 1: Very Low

Discovered: August 16, 2000

Updated: February 13, 2007 11:52:49 AM

Also Known As: Backdoor.Trojan

Type: Trojan Horse

To remove this Trojan, delete files detected as Backdoor.Bla and remove the value that it added to the registry.

To remove the Trojan:

Run LiveUpdate to make sure that you have the most recent virus definitions.
Start Norton AntiVirus (NAV), and run a full system scan, making sure that NAV is set to scan all files.
If any files are detected as Backdoor.Bla, first write down the file names, and then delete them.

NOTE: If NAV displays a message that it cannot delete the file, you must first remove the value that it added to the registry, restart the computer, and run the scan again.

To edit the registry:

CAUTION

How to back up the Windows registry

Click Start, and click Run. The Run dialog box appears.
Type regedit and then click OK. The Registry Editor opens.
Navigate to the key

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
In the right pane, in the Data column, look for a reference to the file name that you wrote down earlier (the file that NAV detected as infected). The entry in the Name column will vary, but the following have been reported:

System
IO System Debug
Delete the entry that refers to the Trojan file name.
Click Registry, and then click Exit to save the change.

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