TSPY_INFOSTIL.AY

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_CURRENT_USER>Software>Microsoft>Internet Explorer
3. Still in the left panel, locate and delete the key:
   PhishingFilter
4. In the left panel, double-click the following:
   HKEY_CLASSES_ROOT
5. Still in the left panel, locate and delete the key:
   BHO_HelloWorld.BHO
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>BHO_HelloWorld.BHO
7. Still in the left panel, locate and delete the key:
   CLSID
8. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
9. Still in the left panel, locate and delete the key:
   {8A194578-81EA-4850-9911-13BA2D71EFBD}
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{8A194578-81EA-4850-9911-13BA2D71EFBD}
11. Still in the left panel, locate and delete the key:
    InprocServer32
12. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{8A194578-81EA-4850-9911-13BA2D71EFBD}>InprocServer32
13. Still in the left panel, locate and delete the key:
    1.0.0.0
14. Again Still in the left panel, locate and delete the key:
    ProgId
15. Again Still in the left panel, locate and delete the key:
    Implemented Categories
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{8A194578-81EA-4850-9911-13BA2D71EFBD}>Implemented Categories
17. Still in the left panel, locate and delete the key:
    {62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Component Categories
19. Still in the left panel, locate and delete the key:
    {62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
20. 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>Microsoft>Windows>CurrentVersion>policies>system
3. In the right panel, locate and delete the entry:
   EnableLUA = "0"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer
5. In the right panel, locate and delete the entry:
   SmartScreenEnabled = "Off"
6. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>Main
7. In the right panel, locate and delete the entry:
   Isolation = "PMIL"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>PhishingFilter
9. In the right panel, locate and delete the entry:
   EnabledV8 = "0"
10. Again In the right panel, locate and delete the entry:
    EnabledV9 = "0"
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{8A194578-81EA-4850-9911-13BA2D71EFBD}>InprocServer32
12. In the right panel, locate and delete the entry:
    ThreadingModel = "Both"
13. Again In the right panel, locate and delete the entry:
    Class = "BHO_HelloWorld.BHO"
14. Again In the right panel, locate and delete the entry:
    Assembly = "BHOHelloWorld, Version
15. Again In the right panel, locate and delete the entry:
    RuntimeVersion = "v2.0.50727"
16. Again In the right panel, locate and delete the entry:
    CodeBase = "{random characters}"
17. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{8A194578-81EA-4850-9911-13BA2D71EFBD}>InprocServer32>1.0.0.0
18. In the right panel, locate and delete the entry:
    Class = "BHO_HelloWorld.BHO"
19. Again In the right panel, locate and delete the entry:
    Assembly = "BHOHelloWorld, Version
20. Again In the right panel, locate and delete the entry:
    RuntimeVersion = "v2.0.50727"
21. Again In the right panel, locate and delete the entry:
    CodeBase = "{random characters}"
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Component Categories>{62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
23. In the right panel, locate and delete the entry:
    0 = ".NET Category"
24. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer>Browser Helper Objects>{8a194578-81ea-4850-9911-13ba2d71efbd}
25. In the right panel, locate and delete the entry:
    NoExplorer = "1"
26. 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_CURRENT_USER>Software>Microsoft>Internet Explorer>Download
3. In the right panel, locate the registry value:
   CheckExeSignatures = "no"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   CheckExeSignatures = "yes"
5. 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%\aut2.tmp
   • %User Temp%\gladbfp
   • %User Temp%\tmp
   • %User Temp%\TEMP77404.exe
   • %User Temp%\autA.tmp
   • %User Temp%\gcihlvw
   • %User Temp%\autF.tmp
   • %User Profile%\YoutubeHD\YoutubeHD.dll
   • %User Temp%\aut13.tmp
   • %User Profile%\YoutubeHD\Interop.SHDocVw.dll
   • %User Temp%\aut17.tmp
   • %User Profile%\YoutubeHD\Microsoft.mshtml.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%\aut2.tmp
   • %User Temp%\gladbfp
   • %User Temp%\tmp
   • %User Temp%\TEMP77404.exe
   • %User Temp%\autA.tmp
   • %User Temp%\gcihlvw
   • %User Temp%\autF.tmp
   • %User Profile%\YoutubeHD\YoutubeHD.dll
   • %User Temp%\aut13.tmp
   • %User Profile%\YoutubeHD\Interop.SHDocVw.dll
   • %User Temp%\aut17.tmp
   • %User Profile%\YoutubeHD\Microsoft.mshtml.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:
   
   • %User Profile%\Application Data\YoutubeHD
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.