TROJ_ENCPDF.A

To restart in Safe Mode:

• For Windows 2000 users

1. Restart your computer.
2. Press F8 when you see the Starting Windows bar at the bottom of the screen.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows XP users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Windows Advanced Options menu does not appear, try restarting then pressing F8 several times when the POST screen appears.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows Server 2003 users

1. Restart your computer.
2. Press F8 after Windows starts up. If the Windows Advanced Options menu does not appear, try restarting again and pressing F8 several times afterward.
3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode then press Enter.

To delete the registry value this malware created:

1. Open Registry Editor. To do this, click Start>Run, type regedit in the text box provided, then press Enter.
2. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>system
3. In the right panel, locate and delete the entry:
   EnableLUA = 0
4. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Control>Class>{4D36E972-E325-11CE-BFC1-08002bE10318}>0002
5. In the right panel, locate and delete the entry:
   EnableForRas = 0
6. Again In the right panel, locate and delete the entry:
   EnableForRouting = 0
7. Again In the right panel, locate and delete the entry:
   EnableForOutboundRouting = 0
8. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Control>Class>{4D36E972-E325-11CE-BFC1-08002bE10318}>0003
9. In the right panel, locate and delete the entry:
   EnableForRas = 0
10. Again In the right panel, locate and delete the entry:
    EnableForRouting = 0
11. Again In the right panel, locate and delete the entry:
    EnableForOutboundRouting = 0
12. In the left panel of the Registry Editor window, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Control>Class>{4D36E972-E325-11CE-BFC1-08002bE10318}>0004
13. In the right panel, locate and delete the entry:
    EnableForRas = 0
14. Again In the right panel, locate and delete the entry:
    EnableForRouting = 0
15. Again In the right panel, locate and delete the entry:
    EnableForOutboundRouting = 0
16. In the left panel of the Registry Editor window, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Control>Class>{4D36E972-E325-11CE-BFC1-08002bE10318}>0005
17. In the right panel, locate and delete the entry:
    EnableForRas = 0
18. Again In the right panel, locate and delete the entry:
    EnableForRouting = 0
19. Again In the right panel, locate and delete the entry:
    EnableForOutboundRouting = 0
20. In the left panel of the Registry Editor window, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services>RasMan>Parameters
21. In the right panel, locate and delete the entry:
    IpOutLowWatermark = 1
22. Again In the right panel, locate and delete the entry:
    IpOutHighWatermark = 5
23. Again In the right panel, locate and delete the entry:
    NbfOutLowWatermark = 1
24. Again In the right panel, locate and delete the entry:
    NbfOutHighWatermark = 5
25. Again In the right panel, locate and delete the entry:
    NbfInLowWatermark = 1
26. Again In the right panel, locate and delete the entry:
    NbfInHighWatermark = 5
27. Close Registry Editor.

To delete the registry key this malware/grayware/spyware created:

1. Restart your computer in Safe Mode. For instructions on how to do this, you may refer to this page. If the preceding step requires you to restart in safe mode, you may proceed to #2.
2. Open Registry Editor. To do this, click Start>Run, type REGEDIT in the text box provided, then press Enter.
3. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Tracing
4. Still in the left panel, locate and delete the key:
   BAP
5. Again Still in the left panel, locate and delete the key:
   PPP
6. Again Still in the left panel, locate and delete the key:
   RASBACP
7. Again Still in the left panel, locate and delete the key:
   RASCCP
8. Again Still in the left panel, locate and delete the key:
   RASEAP
9. Again Still in the left panel, locate and delete the key:
   RASIPCP
10. Again Still in the left panel, locate and delete the key:
    RASIPHLP
11. Again Still in the left panel, locate and delete the key:
    RASMAN
12. Again Still in the left panel, locate and delete the key:
    RASPAP
13. Again Still in the left panel, locate and delete the key:
    RASQEC
14. Again Still in the left panel, locate and delete the key:
    RASSPAP
15. Again Still in the left panel, locate and delete the key:
    RASTAPI
16. In the left panel of the Registry Editor window, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services>Eventlog>Application
17. Still in the left panel, locate and delete the key:
    Microsoft H.323 Telephony Service Provider
18. Close Registry Editor.

To restore the registry value this malware/grayware modified:

1. Open Registry Editor. Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Winlogon
3. In the right panel, locate the registry value:
   Userinit = %System%\userinit.exe,%System%\mstap32.exe
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Userinit = %System%\userinit.exe,
5. Close Registry Editor.

To edit the HOSTS file:

1. Open the following file using a text editor such as Notepad:
   %System%\drivers\etc\HOSTS
   (Note: %System% is the Windows system folder, which is usually C:\WINNT\System32 on Windows 2000, and C:\Windows\System32 on Windows XP and Windows Server 2003.)
2. Delete the following entry/ies:
   69.90.81.66 {username}
3. Save the file and close the text editor.

To delete the malware/grayware/spyware file:

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%\htdns.dll
   %User Temp%\GeoIP.dat
   %Windows%\pdoor.exe
   
   
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 permanently delete the file.