TROJ_CRYPCTB.YWC

To restart in Safe Mode:

• For Windows 2000 users

1. Restart your computer.
2. Press F8 when you see the Starting Windows bar at the bottom of the screen.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows XP users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Windows Advanced Options menu does not appear, try restarting then pressing F8 several times when the POST screen appears.
3. Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.

• For Windows Server 2003 users

1. Restart your computer.
2. Press F8 after Windows starts up. If the Windows Advanced Options menu does not appear, try restarting again and pressing F8 several times afterward.
3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode then press Enter.

• For Windows Vista, Windows 7, and Windows Server 2008 users

1. Restart your computer.
2. Press F8 after the Power-On Self Test (POST) routine is done. If the Advanced Boot Options menu does not appear, try restarting and then pressing F8 several times after the POST screen is displayed.
3. On the Advanced Boot Options menu, use the arrow keys to select the Safe Mode option, and then press Enter.

• For Windows 8, Windows 8.1, and Windows Server 2012 users

1. Access the Charms bar by moving your mouse pointer to the upper right corner of the screen.
2. Move your mouse pointer down and click Settings>Change your PC Settings.
3. In the left panel, click General.
4. In the right panel, scroll down to the bottom to find the Advanced startup section, then click the Restart now button and wait for the system to restart.
5. In the Advanced Startup menu, click Troubleshoot>Advanced Options>Startup Settings>Restart and wait for the system to restart.
6. In the Startup Settings menu, press 4 to enable safe mode.

To delete malware/grayware files:

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

1. Right-click Start then click Search....
2. In the File name* input box, type
    
   • %ProgramData%\{randomly selected folder}\{random filename} (for Windows Vista and above)
   • %All Users Profile%\Application Data\{randomly selected folder}\{random filename} (for Windows XP and below)
   • %All Users profile%\{random filename}.html (for Windows Vista and above)
   • %ProgramData%\{random filename}.html (for Windows Vista and above)
   • %All Users Profile%\Application Data\{random filename}.html (for Windows XP and below)
   • %User Profile%\Documents\!Decrypt-All-Files-{random letters}.bmp (for Windows Vista and above)
   • %User Profile%\Documents\!Decrypt-All-Files-{random letters}.txt (for Windows Vista and above)
   • %User Profile%\My Documents\!Decrypt-All-Files-{random letters}.bmp (for Windows XP and below)
   • %User Profile%\My Documents\!Decrypt-All-Files-{random letters}.txt (for Windows XP and below)
   • %System%\Tasks\{random filename} (for Windows Vista and above)
   • %Windows%\Tasks\{random filename}.job (for Windows XP and below)
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.
   *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 2008, Windows 8, Windows 8.1, and Windows Server 2012:

1. Open a Windows Explorer window.
   • For Windows Vista, 7, and Server 2008 users, click Start>Computer.
   • For Windows 8, 8.1, and Server 2012 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:
    
   • %ProgramData%\{randomly selected folder}\{random filename} (for Windows Vista and above)
   • %All Users Profile%\Application Data\{randomly selected folder}\{random filename} (for Windows XP and below)
   • %All Users profile%\{random filename}.html (for Windows Vista and above)
   • %ProgramData%\{random filename}.html (for Windows Vista and above)
   • %All Users Profile%\Application Data\{random filename}.html (for Windows XP and below)
   • %User Profile%\Documents\!Decrypt-All-Files-{random letters}.bmp (for Windows Vista and above)
   • %User Profile%\Documents\!Decrypt-All-Files-{random letters}.txt (for Windows Vista and above)
   • %User Profile%\My Documents\!Decrypt-All-Files-{random letters}.bmp (for Windows XP and below)
   • %User Profile%\My Documents\!Decrypt-All-Files-{random letters}.txt (for Windows XP and below)
   • %System%\Tasks\{random filename} (for Windows Vista and above)
   • %Windows%\Tasks\{random filename}.job (for Windows XP and below)
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 restore the registry value this malware/grayware modified:

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 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 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>Control Panel>Desktop
3. In the right panel, locate this registry entry:
   WallpaperStyle = "0"
4. Right-click the value name and choose Modify. Change the value data of this entry to:
   WallpaperStyle = "{User-defined}"
5. Again In the right panel, locate this registry entry:
   Wallpaper = "%User Profile%\{Documents or My Documents}\!Decrypt-All-Files-{random letters}.bmp"
6. Right-click the value name and choose Modify. Change the value data of this entry to:
   Wallpaper = "{User-defined}"
7. Close Registry Editor.

To delete registry keys this malware/grayware created:

1. Open Registry Editor. To do this:
   » 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 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 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 of the Registry Editor window, double-click the following:
   HKEY_CURRENT_USER
3. Still in the left panel, locate and delete the key:
   {no name}   (for Windows Vista and above)
4. Again Still in the left panel, locate and delete the key:
   {symbol}   (for Windows XP and below)
5. Close Registry Editor.