Worm.Win32.DOWNAD.NLJ

To restart in Safe Mode:

• For Windows 7 and Windows Server 2008 (R2) 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.

• For Windows 10 users

1. Press Windows logo key + I on your keyboard to open Settings. If that doesn't work, select the Start button, then select Settings.
2. Select Update & Security > Recovery.
3. Under Advanced startup, select Restart now.
4. After your PC restarts to the Choose an option screen, select Troubleshoot > Advcanced options > Startup settings > Restart.
5. After your PC restarts, you'll see a list og options. Select 4 or press F4 to start your PC in Safe Mode.

To delete the registry value this malware/grayware created:

1. Open Registry Editor.
   » For 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, Windows 10, 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_LOCAL_MACHINE>SYSTEM>ControlSet001>services>{Random Characters}
3. In the right panel, locate and delete the entry:
   DisplayName = {Random Characters}
4. Again In the right panel, locate and delete the entry:
   Type = 32
5. Again In the right panel, locate and delete the entry:
   Start = 2
6. Again In the right panel, locate and delete the entry:
   ErrorControl = 0
7. Again In the right panel, locate and delete the entry:
   ImagePath = %System%\svchost.exe -k netsvcs
8. Again In the right panel, locate and delete the entry:
   ObjectName = LocalSystem
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>services>{Random Characters}>Parameters
10. In the right panel, locate and delete the entry:
    ServiceDll = %System%\viajus.dll
11. Close Registry Editor.

To restore the registry value this malware/grayware modified:

1. Open Registry Editor.
   » For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, 8.1, 10, and 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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost
3. In the right panel, locate the registry value:
   netsvcs = {Default Services}, {Service Created By the Malware}
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   netsvcs = {Default Services}
5. Close Registry Editor.

To delete registry keys this malware/grayware created:

1. Open Registry Editor. To do this:
   » For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, 8.1, 10, and 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 of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>services>{Random Characters}>
3. Still in the left panel, locate and delete the key:
   Parameters
4. In the left panel of the Registry Editor window, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>services>
5. Still in the left panel, locate and delete the key:
   {Random Characters}
6. Close Registry Editor.

To identify and delete AUTORUN.INF files created:

For Windows 7, Server 2008 (R2), 8, 8.1, 10, and Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows 7 and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, 10, 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:
   AUTORUN.INF
3. Select the file, then open using Notepad.
4. Check if the following lines are present in the file:
   
   • {Garbage Characters}
   • [AUTorun
   • AcTION = Open folder to view files
   • icon = %syStEmrOot%\sySTEM32\sHELL32.Dll,4
   • shelLExECUte = RuNdLl32.EXE .\RECYCLER\{SID}\jwgkvsq.vmx,ahaezedrn
   • useAuTopLAY=1
5. If the lines are present, delete the file.
6. Repeat steps 3 to 5 for the remaining AUTORUN.INF files in other remaining removable drives.
7. Close Search Results.

• In %System%\
  • viajus.dll
    
• In {Drive Letter}:\RECYCLER\{SID}\
  • jwgkvsq.vmx
    

To delete malware/grayware files:

For Windows 7 and Server 2008 (R2), 8, 8.1, 10, and Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows 7 and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, 10, 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:
   
   • %System%\viajus.dll
   • {Drive Letter}:\RECYCLER\{SID}\jwgkvsq.vmx
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 and Server 2008 (R2).

To delete malware/grayware/spyware folders:

For Windows 7, Windows Server 2008 (R2), Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows 7 and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, 10, 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:
   
   • {Drive Letter}:\RECYCLER\{SID}
   • {Drive Letter}:\RECYCLER
3. Once located, select the file then press SHIFT+DELETE to permanently delete the folder.
4. Repeat steps 2-3 for the remaining folders:
   • {Drive Letter}:\RECYCLER\{SID}
   • {Drive Letter}:\RECYCLER
   *Note: Read the following Microsoft page if these steps do not work on Windows 7 and Server 2008 (R2).