TROJ_RENOS.SMC

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

1. Open Notepad. To do this:
   
   • For Windows 2000, XP, and Server 2003 users:
     Click Start>Run, type Notepad in the text box provided, then press Enter.
   • For Windows Vista and 7 users:
     Click start. Type Notepad , 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>Explorer
3. Still in the left panel, locate and delete the key:
   UninstallSXS
4. In the left panel, double-click the following:
   HKEY_CLASSES_ROOT>CLSID>{24E31EA9-FCE2-404F-BD80-20543565D946}
5. Still in the left panel, locate and delete the key:
   InProcServer32
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>Software>Microsoft>Windows>CurrentVersion>Uninstall
7. Still in the left panel, locate and delete the key:
   LiveUpdate
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software
9. Still in the left panel, locate and delete the key:
   ssnipe
10. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies
11. Still in the left panel, locate and delete the key:
    System
12. Again Still in the left panel, locate and delete the key:
    ActiveDesktop
13. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>Windows>CurrentVersion>Policies
14. Still in the left panel, locate and delete the key:
    Explorer
15. Again Still in the left panel, locate and delete the key:
    ActiveDesktop
16. 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>{24E31EA9-FCE2-404F-BD80-20543565D946}>InProcServer32
3. In the right panel, locate and delete the entry:
   ThreadingModel = "Apartment"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer>SharedTaskScheduler
5. In the right panel, locate and delete the entry:
   {24E31EA9-FCE2-404F-BD80-20543565D946} = "Windows Installer Class"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Uninstall>LiveUpdate
7. In the right panel, locate and delete the entry:
   DisplayName = "KB 237521"
8. Again In the right panel, locate and delete the entry:
   UninstallString = "%User Temp%\~~uninstall.exe"
9. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
10. In the right panel, locate and delete the entry:
    DisableThumbnailCache = "1"
11. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>ssnipe
12. In the right panel, locate and delete the entry:
    wmid = "1"
13. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>ActiveDesktop
14. In the right panel, locate and delete the entry:
    NoChangingWallpaper = "1"
15. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>Explorer
16. In the right panel, locate and delete the entry:
    NoSetActiveDesktop = "1"
17. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>ActiveDesktop
18. In the right panel, locate and delete the entry:
    NoChangingWallpaper = "1"
19. Again In the right panel, locate and delete the entry:
    NoActiveDesktopChanges = "1"
20. 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_LOCAL_MACHINE>SOFTWARE>Microsoft>Security Center
3. In the right panel, locate the registry value:
   FirewallOverride = "1"
4. Again In the right panel, locate the registry value:
   AntiVirusDisableNotify = "1"
5. Again In the right panel, locate the registry value:
   UpdatesDisableNotify = "1"
6. Again In the right panel, locate the registry value:
   FirewallDisableNotify = "1"
7. 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%\~~install.dll
   • %User Temp%\~~uninstall.exe
   • %User Profile%\Application Data\config.cfg
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%\~~install.dll
   • %User Temp%\~~uninstall.exe
   • %User Profile%\Application Data\config.cfg
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.