TROJ_DROPPR.GDF

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, 7, and Server 2008 (R2) users:
     Click start. Type Notepad , then press Enter.
   • For Windows 8, 8.1, and 2012 (R2) users:
     Right-click on the lower left corner of the screen. Click Run. Type Notepad in the input field, 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. Run C:\RESTORE.VBS by double-clicking on the file.
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.
   » For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
   » For Windows Vista, Windows 7, and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, and Windows Server 2012 (R2) users, right-click on the lower left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>wK³
3. Still in the left panel, locate and delete the key:
   {random key}
4. In the left panel, double-click the following:
   HKEY_USERS>S-1-5-21-1645522239-1292428093-682003330-1003>Software>Microsoft>Windows>CurrentVersion>policies>Explorer
5. Still in the left panel, locate and delete the key:
   Run
6. Close Registry Editor.

To delete the registry value this malware/grayware created:

1. Open Registry Editor.
   » For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
   » For Windows Vista, Windows 7, and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows NT>CurrentVersion>Winlogon
3. In the right panel, locate and delete the entry:
   SysDebug32 = "{random values}"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile>AuthorizedApplications>List
5. In the right panel, locate and delete the entry:
   %System%\svchost.exe = "%System%\svchost.exe:*:Enabled:Lub_KpCexWpDXbvcLulkwVCaLz"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>system
7. In the right panel, locate and delete the entry:
   Lub_KpCexWpDXbvcLulkwVCaLz = "ffffffff"
8. Close Registry Editor.

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

1. Right-click Start then click Search....
2. In the File name* input box, type the following:
   
   • %System%\OSDIoNByCDRgSS.exe
   • %User Startup%\System Check.lnk
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.
   *Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2003 (R2), Windows 8, Windows 8.1, and Windows Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows Vista, 7, and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, and Server 2012 (R2) users, right-click on the lower left corner of the screen,then click File Explorer.
2. In the Search Computer/This PC input box, type:
   
   • %System%\OSDIoNByCDRgSS.exe
   • %User Startup%\System Check.lnk
3. Once located, select the file then press SHIFT+DELETE to delete it.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.