WORM_OTORUN.GI

To identify and delete the malware/grayware file:

1. Insert your Windows Installation CD in your CD-rom.
2. Press the restart button of your computer.
3. When prompted, press any key to boot from the CD.
4. When prompted on the Main Menu, type r to enter the recovery console.
   (Note: On Windows 2000, after pressing r, type c to choose the Recovery Console in the repair options screen.)
5. When prompted, type your administrator password to log on.
6. Once logged in, type the drive that contains Windows in the command prompt that appears, then press Enter.
7. Type the drive that contains Windows, then press Enter.
8. Type the following, then press Enter:
   del {malware/grayware path and file name}
9. Repeat the above procedure for all files detected earlier.
10. Type exit to restart the system normally.

To enable Registry Editor, Task Manager, and Folder options:

1. Open Notepad. To do this, click Start>Run, type Notepad in the text box provided, then press Enter.
2. Copy and paste the following script:
   On Error Resume Next Set shl = WScript.CreateObject("WScript.Shell") shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions"
3. Save this file as C:\RESTORE.VBS.
4. Click Start>Run again, type C:\RESTORE.VBS in the text box provided, then press Enter.
5. Click Yes at the prompt of the message box to execute the .VBS file.

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>Windows>CurrentVersion>policies
3. Still in the left panel, locate and delete the key:
   System
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>Software>Policies>Microsoft>Windows
5. Still in the left panel, locate and delete the key:
   System
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options
7. Still in the left panel, locate and delete the key:
   regedit.exe
8. Again Still in the left panel, locate and delete the key:
   mmc.exe
9. Again Still in the left panel, locate and delete the key:
   msconfig.exe
10. Again Still in the left panel, locate and delete the key:
    USBGUARD.EXE
11. Again Still in the left panel, locate and delete the key:
    VPTRAY.EXE
12. Again Still in the left panel, locate and delete the key:
    AVGNT.EXE
13. Again Still in the left panel, locate and delete the key:
    AVP.EXE
14. Again Still in the left panel, locate and delete the key:
    pctsgui.exe
15. Again Still in the left panel, locate and delete the key:
    pctstray.exe
16. Again Still in the left panel, locate and delete the key:
    ashdisp.exe
17. Again Still in the left panel, locate and delete the key:
    HijackThis.exe
18. 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>Run
3. In the right panel, locate and delete the entry:
   HotKey = "%User Profile%\cache\SFCsrvc.pif"
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
5. In the right panel, locate and delete the entry:
   HotKey = "%User Profile%\cache\SFCsrvc.pif"
6. Again In the right panel, locate and delete the entry:
   User Agent = "%System%\fdisk.com"
7. Again In the right panel, locate and delete the entry:
   User Agent = "%User Temp%\svchost.com"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Command Processor
9. In the right panel, locate and delete the entry:
   AutoRun = "%Windows%\Help\cliconf.chm"
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Policies>Microsoft>Windows>System
11. In the right panel, locate and delete the entry:
    DisableGPO = "1"
12. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>regedit.exe
13. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
14. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>mmc.exe
15. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>msconfig.exe
17. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>USBGUARD.EXE
19. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
20. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>VPTRAY.EXE
21. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>AVGNT.EXE
23. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
24. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>AVP.EXE
25. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
26. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>pctsgui.exe
27. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
28. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>pctstray.exe
29. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
30. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>ashdisp.exe
31. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
32. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>HijackThis.exe
33. In the right panel, locate and delete the entry:
    debugger = "%User Temp%\svchost.com Kll_dis"
34. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows NT>CurrentVersion>Windows
35. In the right panel, locate and delete the entry:
    run = "%User Temp%\svchost.com"
36. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
37. In the right panel, locate and delete the entry:
    ShowSuperHidden = "0"
38. 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 NT>CurrentVersion>Windows
3. In the right panel, locate the registry value:
   load = "%User Temp%\svchost.com"
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
5. In the right panel, locate the registry value:
   HideFileExt = "2"
6. Right-click on the value name and choose Modify. Change the value data of this entry to:
   HideFileExt = "1"
7. Again In the right panel, locate the registry value:
   Hidden = "2"
8. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Hidden = "2"
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Winlogon
10. In the right panel, locate the registry value:
    Shell = "explorer.exe %System%\fdisk.com"
11. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Shell = "Explorer.exe"
12. Again In the right panel, locate the registry value:
    Userinit = "%System%\userinit.exe,%System%\fdisk.com"
13. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Userinit = "%Windows%\system32\userinit.exe,"
14. Close Registry Editor.

To delete malware/grayware component files:

1. Search for the following files:
   
   • %User Profile%\cache\SFCsrvc.pif
   • %System%\fdisk.com
   • %Common Startup%\sndvol32.exe
   • %User Startup%\sndvol32.exe
   • %Windows%\Help\cliconf.chm
   • %Program Files%\Common Files\System\cftmon.exe
   • %System Root%\Thumbs.db
   
   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.

To delete malware/grayware folders:

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 Temp%\$RECYCLE.BIN
   • %User Temp%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}
   • %User Profile%\Templates\cache
   • %User Profile%\cache\$RECYCLE.BIN
   • %User Profile%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}
   • %System Root%\$RECYCLE.BIN
   • %System Root%\$RECYCLE.BIN\{5F229C11-5039-40E4-8537-6950BB1C9ECC}
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.
5. Repeat the said steps for all folders listed.