TROJ_ESTIWIR.B

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.

• For Windows Vista and Windows 7 users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Advanced Boot Options menu does not appear, try restarting and then pressing F8 several times after the POST screen is displayed.
3. On the Advanced Boot Options menu, use the arrow keys to select the Safe Mode option, and then press Enter.

To delete the registry key 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>CurrentControlSet>Services
3. Still in the left panel, locate and delete the key:
   4a514ebf
4. Again Still in the left panel, locate and delete the key:
   36fa7b39
5. In the left panel, double-click the following:
   HKEY_CLASSES_ROOT>CLSID
6. Still in the left panel, locate and delete the key:
   HOOK_ID
7. Again Still in the left panel, locate and delete the key:
   SYS_DLL
8. In the left panel, double-click the following:
   HKEY_CLASSES_ROOT
9. Still in the left panel, locate and delete the key:
   IEHlprObj.IEHlprObj.1
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>IEHlprObj.IEHlprObj.1
11. Still in the left panel, locate and delete the key:
    CLSID
12. Again Still in the left panel, locate and delete the key:
    IEHlprObj.IEHlprObj
13. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>IEHlprObj.IEHlprObj
14. Still in the left panel, locate and delete the key:
    CurVer
15. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
16. Still in the left panel, locate and delete the key:
    {AB705622-B25B-491B-A6BF-4A46FDDBC88E}
17. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{AB705622-B25B-491B-A6BF-4A46FDDBC88E}
18. Still in the left panel, locate and delete the key:
    ProgID
19. Again Still in the left panel, locate and delete the key:
    VersionIndependentProgID
20. Again Still in the left panel, locate and delete the key:
    Programmable
21. Again Still in the left panel, locate and delete the key:
    InprocServer32
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer
23. Still in the left panel, locate and delete the key:
    Browser Helper Objects
24. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib
25. Still in the left panel, locate and delete the key:
    {AB705628-B25B-491B-A6BF-4A46FDDBC88E}
26. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AB705628-B25B-491B-A6BF-4A46FDDBC88E}
27. Still in the left panel, locate and delete the key:
    1.0
28. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AB705628-B25B-491B-A6BF-4A46FDDBC88E}>1.0
29. Still in the left panel, locate and delete the key:
    FLAGS
30. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AB705628-B25B-491B-A6BF-4A46FDDBC88E}>1.0>0
31. Still in the left panel, locate and delete the key:
    win32
32. Again Still in the left panel, locate and delete the key:
    HELPDIR
33. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface
34. Still in the left panel, locate and delete the key:
    {AB705621-B25B-491B-A6BF-4A46FDDBC88E}
35. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{AB705621-B25B-491B-A6BF-4A46FDDBC88E}
36. Still in the left panel, locate and delete the key:
    ProxyStubClsid
37. Again Still in the left panel, locate and delete the key:
    ProxyStubClsid32
38. Again Still in the left panel, locate and delete the key:
    TypeLib
39. Close Registry Editor.

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>SOFTWARE>Classes>CLSID>HOOK_ID
3. In the right panel, locate and delete the entry:
   name = "bebc.exe"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>4a514ebf
5. In the right panel, locate and delete the entry:
   Type = "1"
6. Again In the right panel, locate and delete the entry:
   ErrorControl = "1"
7. Again In the right panel, locate and delete the entry:
   Start = "1"
8. Again In the right panel, locate and delete the entry:
   ImagePath = "\??\%System%\drivers\4a514ebf.sys"
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>SYS_DLL
10. In the right panel, locate and delete the entry:
    name = "D7XY27fba.dll"
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>36fa7b39
12. In the right panel, locate and delete the entry:
    Type = "1"
13. Again In the right panel, locate and delete the entry:
    ErrorControl = "1"
14. Again In the right panel, locate and delete the entry:
    Start = "1"
15. Again In the right panel, locate and delete the entry:
    ImagePath = "\??\%System%\drivers\36fa7b39.sys"
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{AB705622-B25B-491B-A6BF-4A46FDDBC88E}>InprocServer32
17. In the right panel, locate and delete the entry:
    ThreadingModel = "Apartment"
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{AB705621-B25B-491B-A6BF-4A46FDDBC88E}>TypeLib
19. In the right panel, locate and delete the entry:
    Version = "1.0"
20. 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%\bebc.exe
   • %System%\drivers\4a514ebf.sys
   • %System%\goodsb.dll
   • %User Temp%\A1.zip
   • %User Temp%\B1.zip
   • %User Temp%\C1.zip
   • %User Temp%\D1.zip
   • %User Temp%\J2sVh738Q8.dll
   • %User Temp%\D7XY27fba.dll
   • %System%\drivers\36fa7b39.sys
   • %System%\ws2tcpip.dll
   • %System%\wshtcpip.dll
   • %System%\midimap.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%\bebc.exe
   • %System%\drivers\4a514ebf.sys
   • %System%\goodsb.dll
   • %User Temp%\A1.zip
   • %User Temp%\B1.zip
   • %User Temp%\C1.zip
   • %User Temp%\D1.zip
   • %User Temp%\J2sVh738Q8.dll
   • %User Temp%\D7XY27fba.dll
   • %System%\drivers\36fa7b39.sys
   • %System%\ws2tcpip.dll
   • %System%\wshtcpip.dll
   • %System%\midimap.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.