TROJ_SCAR.SMH

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_LOCAL_MACHINE>Software>Microsoft>Windows>CurrentVersion>Policies
3. Still in the left panel, locate and delete the key:
   Explorer
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options
5. Still in the left panel, locate and delete the key:
   msconfig.exe
6. Again Still in the left panel, locate and delete the key:
   notepad.exe
7. Again Still in the left panel, locate and delete the key:
   dxdiag.exe
8. Again Still in the left panel, locate and delete the key:
   regedit.exe
9. 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 NT>CurrentVersion>Image File Execution Options>msconfig.exe
3. In the right panel, locate and delete the entry:
   Debugger = "%Windows%\Fonts.exe"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>notepad.exe
5. In the right panel, locate and delete the entry:
   Debugger = "%Windows%\Fonts.exe"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>dxdiag.exe
7. In the right panel, locate and delete the entry:
   Debugger = "%Windows%\Fonts.exe"
8. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>regedit.exe
9. In the right panel, locate and delete the entry:
   Debugger = "%Windows%\Fonts.exe"
10. 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>Windows>CurrentVersion>Explorer>Advanced
3. In the right panel, locate the registry value:
   HideFileExt = "1"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   HideFileExt = "1"
5. Again In the right panel, locate the registry value:
   Hidden = "2"
6. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Hidden = "2"
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:
   
   • %System Root%\temp.zip
   • %System Root%\A9a01712
   • %System Root%\Thumbs.db
   • %Program Files%\Thumbs.db
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:
   
   • %System Root%\temp.zip
   • %System Root%\A9a01712
   • %System Root%\Thumbs.db
   • %Program Files%\Thumbs.db
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.