BKDR_LURK.CA

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, 7, and Server 2008:
     Click the Start button, type REGEDIT in the Search input field then press Enter.
   • On Windows 8, 8.1, and Server 2012:
     Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer
3. In the right panel, locate the registry value:
   FaultCount = "1"
4. Again In the right panel, locate the registry value:
   FaultTime = "afb8"
5. Again In the right panel, locate the registry value:
   FaultCount = "0"
6. Again In the right panel, locate the registry value:
   FaultTime = "0"
7. Again In the right panel, locate the registry value:
   CleanShutdown = "0"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Applets>SysTray
9. In the right panel, locate the registry value:
   Services = "1f"
10. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Services = "1f"
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Tracing>Microsoft>Imapi
12. In the right panel, locate the registry value:
    LogSessionName = "stdout"
13. Right-click on the value name and choose Modify. Change the value data of this entry to:
    LogSessionName = "{random values}"
14. Again In the right panel, locate the registry value:
    Active = "1"
15. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Active = "1"
16. Again In the right panel, locate the registry value:
    ControlFlags = "1"
17. Right-click on the value name and choose Modify. Change the value data of this entry to:
    ControlFlags = "1"
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Tracing>Microsoft>Imapi>ImapiSvc
19. In the right panel, locate the registry value:
    Guid = "8107d8e9-e323-49f5-bba2-abc35c243dca"
20. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Guid = "8107d8e9-e323-49f5-bba2-abc35c243dca"
21. Again In the right panel, locate the registry value:
    BitNames = "{random characters}"
22. Right-click on the value name and choose Modify. Change the value data of this entry to:
    BitNames = " ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort"
23. Close Registry Editor.

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

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

1. Right-click Start then click Search....
2. In the File name* input box, type the following:
   
   • %User Temp%\~EEDA7.tmp
   • %User Temp%\~A2B8.TMP
   • %Temp%\zl4c993d.TMP
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.
   *Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

1. Open a Windows Explorer window.
   • For Windows Vista, 7, and Server 2008 users, click Start>Computer.
   • For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
2. In the Search Computer/This PC input box, type:
   
   • %User Temp%\~EEDA7.tmp
   • %User Temp%\~A2B8.TMP
   • %Temp%\zl4c993d.TMP
3. Once located, select the file then press SHIFT+DELETE to delete it.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.