WORM_TATERF.RNA

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 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_CLASSES_ROOT
3. Still in the left panel, locate and delete the key:
   IEHlprObj.IEHlprObj.1
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>IEHlprObj.IEHlprObj.1
5. Still in the left panel, locate and delete the key:
   CLSID
6. Again Still in the left panel, locate and delete the key:
   IEHlprObj.IEHlprObj
7. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>IEHlprObj.IEHlprObj
8. Still in the left panel, locate and delete the key:
   CurVer
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
10. Still in the left panel, locate and delete the key:
    {AF4DA69B-E1D6-469A-855B-6445294857D4}
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{AF4DA69B-E1D6-469A-855B-6445294857D4}
12. Still in the left panel, locate and delete the key:
    ProgID
13. Again Still in the left panel, locate and delete the key:
    VersionIndependentProgID
14. Again Still in the left panel, locate and delete the key:
    Programmable
15. Again Still in the left panel, locate and delete the key:
    InprocServer32
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib
17. Still in the left panel, locate and delete the key:
    {AF4DA692-E1D6-469A-855B-6445294857D4}
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AF4DA692-E1D6-469A-855B-6445294857D4}
19. Still in the left panel, locate and delete the key:
    1.0
20. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AF4DA692-E1D6-469A-855B-6445294857D4}>1.0
21. Still in the left panel, locate and delete the key:
    FLAGS
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{AF4DA692-E1D6-469A-855B-6445294857D4}>1.0>0
23. Still in the left panel, locate and delete the key:
    win32
24. Again Still in the left panel, locate and delete the key:
    HELPDIR
25. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface
26. Still in the left panel, locate and delete the key:
    {AF4DA69C-E1D6-469A-855B-6445294857D4}
27. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{AF4DA69C-E1D6-469A-855B-6445294857D4}
28. Still in the left panel, locate and delete the key:
    ProxyStubClsid
29. Again Still in the left panel, locate and delete the key:
    ProxyStubClsid32
30. Again Still in the left panel, locate and delete the key:
    TypeLib
31. In the left panel, double-click the following:
    HKEY_CLASSES_ROOT>CLSID
32. Still in the left panel, locate and delete the key:
    MNDOWN
33. 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_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   ahnsoft = "%System%\ahnsbsb.exe"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{AF4DA69B-E1D6-469A-855B-6445294857D4}>InprocServer32
5. In the right panel, locate and delete the entry:
   ThreadingModel = "Apartment"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{AF4DA69C-E1D6-469A-855B-6445294857D4}>TypeLib
7. In the right panel, locate and delete the entry:
   Version = "1.0"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
9. In the right panel, locate and delete the entry:
   ShowSuperHidden = "0"
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>MNDOWN
11. In the right panel, locate and delete the entry:
    urlinfo = "tmlhead/headbody!-- vbe --/body/html"
12. Close Registry Editor.

To restore the registry value this malware/grayware/spyware modified:

1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
3. In the right panel, locate the registry value:
   Hidden = "2"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Hidden = "2"
5. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer>Advanced>Folder>Hidden>SHOWALL
6. In the right panel, locate the registry value:
   CheckedValue = "0"
7. Right-click on the value name and choose Modify. Change the value data of this entry to:
   CheckedValue = "1"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Explorer
9. In the right panel, locate the registry value:
   NoDriveTypeAutoRun = "91"
10. Right-click on the value name and choose Modify. Change the value data of this entry to:
    NoDriveTypeAutoRun = "91"
11. Close Registry Editor.

To delete malware/grayware component files:

1. Search for the following files:
   
   • %System%\ahnxsds0.dll
   • %System%\ahnfgss0.dll
   • %System Root%\autorun.inf
   • %User Temp%\ll1.rar
   • %System Root%\lot.exe
   
   Note: To do a search for the following files, right-click Start then click Search... or Find..., depending on the version of Windows you are running. For each file to be deleted, type its file name in the Named input box. In the Look In drop-down list, select My Computer, then press Enter.
2. Once located, select the file then press SHIFT+DELETE to permanently delete the file.
3. Repeat the said steps for all files listed.