TROJ_NEPOTMP.SMT

To delete the registry value this malware/grayware created:

1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>6to4
3. In the right panel, locate and delete the entry:
   InstallModule = "%User Temp%\ope1.exe"
4. Close Registry Editor.

To restore registry values this malware/grayware modified:

1. Open Registry Editor. To do this:
   
   • On Windows 2000, XP, and Server 2003:
     Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
   • On Windows Vista and 7:
     Click the Start button, type REGEDIT in the Search input field then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>6to4
3. In the right panel, locate the registry value:
   Type = "4"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Type = "20"
5. Again In the right panel, locate the registry value:
   Description = "{random characters}"
6. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Description = "Provides DDNS name registration and automatic IPv6 connectivity over an IPv4 network. If this service is stopped, other computers may not be able to reach it by name and the machine will only have IPv6 connectivity if it is connected to a native IPv6 network. If this service is disabled, any other services that explicitly depend on this service will fail to start."
7. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>6to4>Parameters
8. In the right panel, locate the registry value:
   ServiceDll = "%User Profile%\userdata.dll"
9. Right-click on the value name and choose Modify. Change the value data of this entry to:
   ServiceDll = "{random values}"
10. Close Registry Editor.

To manually delete a malware/grayware component from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

1. Right-click Start then click Search....
2. In the Named input box, type:
   
   • %User Temp%\ope1.exe
   • %User Temp%\ope2.jpg
   • %User Profile%\userdata.dll
3. In the Look In drop-down list, select My Computer then press Enter.
4. Once located, select the file then press SHIFT+DELETE to delete it.
5. Repeat the said steps for all files listed.

• For Windows Vista and Windows 7 users:

1. Click Start>Computer.
2. In the Search input box, type:
   
   • %User Temp%\ope1.exe
   • %User Temp%\ope2.jpg
   • %User Profile%\userdata.dll
3. Once located, select the file then press SHIFT+DELETE to delete it.
4. Repeat the said steps for all files listed.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.

To delete the malware/grayware folder:

1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
2. In the Named input box, type:
   
   • %System Root%\Documents and Settings\Local User
3. In the Look In drop-down list, select My Computer, then press Enter.
4. Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.