Swporta.Trojan - Removal

Update the virus definitions, run a full system scan, and delete all files that are detected as Swporta.Trojan.

1. Delete the value that refers to the Trojan program from the registry key
   
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
   
2. Delete the registry key
   
   HKEY_CURRENT_USER\Software\SWCaller
   
3. Remove the value data from
   
   HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Start Page
   HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Startpagina

For details on how to do this, read the following instructions.

To scan with Norton AntiVirus and delete the infected files:

1. Obtain the most recent virus definitions. There are two ways to do this:
   • Run LiveUpdate, which is the easiest way to obtain virus definitions. These virus definitions have undergone full quality assurance testing by Symantec Security Response and are posted to the LiveUpdate servers one time each week (usually Wednesdays) unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, look at the Virus Definitions (LiveUpdate) line at the top of this write-up.
   • Download the definitions using the Intelligent Updater. Intelligent Updater virus definitions have undergone full quality assurance testing by Symantec Security Response. They are posted on U.S. business days (Monday through Friday). They must be downloaded from the Symantec Security Response Web site and installed manually. To determine whether definitions for this threat are available by the Intelligent Updater, look at the Virus Definitions (Intelligent Updater) line at the top of this write-up.
     
     Intelligent Updater virus definitions are available here. For detailed instructions on how to download and install the Intelligent Updater virus definitions from the Symantec Security Response Web site, click here.
     
2. Start Norton AntiVirus (NAV), and make sure that it is configured to scan all files.
   • NAV Consumer products: Read the document How to configure Norton AntiVirus to scan all files.
   • NAV Enterprise products: Read the document How to verify a Symantec Corporate antivirus product is set to scan All Files.
3. Run a full system scan.
4. Write down the names of all files that NAV detects as Swporta.Trojan and then delete them.

To remove the value from the registry:

CAUTION: Symantec strongly recommends that you back up the registry before you make any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify only the keys that are specified. Read the document How to make a backup of the Windows registry for instructions.

1. Click Start, and click Run. The Run dialog box appears.
2. Type regedit and then click OK. The Registry Editor opens.
3. Navigate to the key
   
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
   
4. In the right pane, delet the value that refers to any of the files that were detected as Swporta.Trojan
5. Delete the registry key
   
   HKEY_CURRENT_USER\Software\SWCaller
   
6. Navigate to the key
   
   HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
   
7. In the right pane, if they exist, double-click each of these values
   
   Start Page
   Startpagina
   
8. For each one, clear the text in the Value Data box and then click OK.
9. Click Registry, and click Exit.

Technical Details