Worm.JS.DUNIHI.AMP

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 terminate the malware/grayware/spyware process:

1. Scan your computer with your Trend Micro product and take note of the name of the malware/grayware/spyware detected.
2. Open Windows Task Manager. To do this, press CTRL+SHIFT+ESC.
3. View the list of all running programs. To do this:
   • For Windows 7 and Server 2008 (R2) users, click the Processes tab.
   • For Windows 8, 8.1, 10, and Server 2012 (R2) users, click the Details tab.
4. In the list of running programs, locate a malware/grayware/spyware file detected earlier.
5. Select the detected files, then press either the End Task or the End Process button, depending on the version of Windows you are using.
6. Do the same for the remaining detected malware/grayware/spyware files in the list of running programs.
7. To check if the malware/grayware/spyware process has been terminated, close Task Manager, and then open it again.
8. Close Task Manager.

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 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>software
3. Still in the left panel, locate and delete the key:
   9f36ea931c2da5dfb63c8a4a499f3db36657a35a
4. Close Registry Editor.

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_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   9f36ea931c2da5dfb63c8a4a499f3db36657a35a = "{random characters}"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>9f36ea931c2da5dfb63c8a4a499f3db36657a35a
5. In the right panel, locate and delete the entry:
   (Default) = "false - 17/6/2019"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>Run
7. In the right panel, locate and delete the entry:
   9f36ea931c2da5dfb63c8a4a499f3db36657a35a = "{random characters}"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>StartPage2
9. In the right panel, locate and delete the entry:
   ProgramsCache = "{random characters}"
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>WMI>Autologger>ReadyBoot
11. In the right panel, locate and delete the entry:
    Start = "1"
12. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>rdyboost>Parameters
13. In the right panel, locate and delete the entry:
    ReadyBootVolumeUniqueId = "\xcc@\x91\x13\x00\x00P\x06\x00\x00\x00\x00"
14. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>SESSION MANAGER>MEMORY MANAGEMENT>PrefetchParameters
15. In the right panel, locate and delete the entry:
    EnableBootTrace = "0"
16. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Superfetch
17. In the right panel, locate and delete the entry:
    VirtualStoreSize = "900"
18. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>LanmanServer>Shares
19. In the right panel, locate and delete the entry:
    Users = "\x00\x00\x00\x00\x00\x00\x00"
20. Close Registry Editor.

To restore registry values this malware/grayware modified:

1. Open Registry Editor. To do this:
   
   • On Windows 7 and Server 2008 (R2):
     Click the Start button, type REGEDIT in the Search input field then press Enter.
   • On Windows 8, 8.1, 10, and Server 2012 (R2):
     Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>LanmanServer>Parameters
3. In the right panel, locate the registry value:
   Guid = "\x92\xad\xa0LV\xd6cD\xb9F\x05\xa3\xaf\xfb'g"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   Guid = "{random values}"
5. Close Registry Editor.

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

•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:
   
   • %Windows%\Prefetch\SEARCHPROTOCOLHOST.EXE-0CB8CADE.pf
   • %Windows%\Prefetch\AgAppLaunch.db
   • %System Root%\DfsServer
   • %Windows%\Prefetch\SPPSVC.EXE-B0F8131B.pf
   • %All Users Profile%\Microsoft\Windows\DRM\v3ks.sec
   • F:\wlines.lnk
   • %Windows%\Prefetch\DLLHOST.EXE-A8DE6D5B.pf
   • %All Users Profile%\Microsoft\Windows\DRM\drmstore.hds
   • F:\mail_client.lnk
   • %AppDataLocal%\Microsoft\Media Player\CurrentDatabase_372.wmdb
   • F:\data.lnk
   • %user startup%\{malware file name}.js
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 and Windows Server 2008 (R2).

To delete the malware/grayware folder:

1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
2. In the Named input box, type:
   
   • %Windows%\ServiceProfiles\NetworkService\AppData\Local\Microsoft
3. In the Look In drop-down list, select My Computer, then press Enter.
4. Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.