Worm.Win32.BISMIL.A

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 values this malware/grayware created:

1. Open Registry Editor.
   » For Windows Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field, and 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>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   Windows Defender = "%Application Data%\dll4.exe"
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
5. In the right panel, locate and delete the entry:
   Windows Defender = "%Application Data%\dll4.exe"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Policies>Explorer>run
7. In the right panel, locate and delete the entry:
   Windows Defender = "%Application Data%\dll4.exe"
8. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Active Setup>Installed Components>{GUID}
9. In the right panel, locate and delete the entry:
   StubPath = "%Application Data%\dll4.exe"
10. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Active Setup>Installed Components>{GUID}
11. In the right panel, locate and delete the entry:
    StubPath = "%Application Data%\dll4.exe"
12. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile>AuthorizedApplications>List
13. In the right panel, locate and delete the entry:
    %Application Data%\dll4.exe = "%Application Data%\dll4.exe:*:Enabled:Windows Messanger"
14. 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\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
3. In the right panel, locate this registry entry:
   DoNotAllowExceptions = 0
4. Right-click the value name and choose Modify. Change the value data of this entry to:
   DoNotAllowExceptions = 1
5. Close Registry Editor.

To delete the registry key 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, and 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_CURRENT_USER>Software>VB and VBA Program Settings
3. Still in the left panel, locate and delete the key:
   SrvID
4. Again Still in the left panel, locate and delete the key:
   INSTALL
5. Close Registry Editor.

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:
   
   • %Application Data%\dll4.exe
   • %Application Data%\Bismillah
   • {Drive Letter}:\Autorun.inf
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).