Ransom.Win32.JEST.A

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 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 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>BCD00000000>Objects>{GUID}>Elements
3. Still in the left panel, locate and delete the key:
   250000e0
4. Again Still in the left panel, locate and delete the key:
   16000009
5. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
6. Still in the left panel, locate and delete the key:
   {248DD896-BB45-11CF-9ABC-0080C7E7B78D}
7. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}
8. Still in the left panel, locate and delete the key:
   InprocServer32
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes
10. Still in the left panel, locate and delete the key:
    MSWinsock.Winsock
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock
12. Still in the left panel, locate and delete the key:
    CLSID
13. Again Still in the left panel, locate and delete the key:
    CurVer
14. Again Still in the left panel, locate and delete the key:
    MSWinsock.Winsock.1
15. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock.1
16. Still in the left panel, locate and delete the key:
    CLSID
17. Again Still in the left panel, locate and delete the key:
    VersionIndependentProgID
18. Again Still in the left panel, locate and delete the key:
    ProgID
19. Again Still in the left panel, locate and delete the key:
    TypeLib
20. Again Still in the left panel, locate and delete the key:
    Version
21. Again Still in the left panel, locate and delete the key:
    Implemented Categories
22. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>Implemented Categories
23. Still in the left panel, locate and delete the key:
    {40FC6ED5-2438-11CF-A3DB-080036F12502}
24. Again Still in the left panel, locate and delete the key:
    Programmable
25. Again Still in the left panel, locate and delete the key:
    Control
26. Again Still in the left panel, locate and delete the key:
    MiscStatus
27. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>MiscStatus
28. Still in the left panel, locate and delete the key:
    1
29. Again Still in the left panel, locate and delete the key:
    ToolboxBitmap32
30. Again Still in the left panel, locate and delete the key:
    {40FC6ED4-2438-11CF-A3DB-080036F12502}
31. Again Still in the left panel, locate and delete the key:
    {0DE86A57-2BAA-11CF-A229-00AA003D7352}
32. Again Still in the left panel, locate and delete the key:
    {0DE86A53-2BAA-11CF-A229-00AA003D7352}
33. Again Still in the left panel, locate and delete the key:
    {0DE86A52-2BAA-11CF-A229-00AA003D7352}
34. Again Still in the left panel, locate and delete the key:
    {248DD897-BB45-11CF-9ABC-0080C7E7B78D}
35. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD897-BB45-11CF-9ABC-0080C7E7B78D}
36. Still in the left panel, locate and delete the key:
    InprocServer32
37. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib
38. Still in the left panel, locate and delete the key:
    {248DD890-BB45-11CF-9ABC-0080C7E7B78D}
39. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}
40. Still in the left panel, locate and delete the key:
    1.0
41. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0
42. Still in the left panel, locate and delete the key:
    FLAGS
43. Again Still in the left panel, locate and delete the key:
    0
44. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0>0
45. Still in the left panel, locate and delete the key:
    win32
46. Again Still in the left panel, locate and delete the key:
    HELPDIR
47. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface
48. Still in the left panel, locate and delete the key:
    {248DD892-BB45-11CF-9ABC-0080C7E7B78D}
49. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD892-BB45-11CF-9ABC-0080C7E7B78D}
50. Still in the left panel, locate and delete the key:
    ProxyStubClsid
51. Again Still in the left panel, locate and delete the key:
    ProxyStubClsid32
52. Again Still in the left panel, locate and delete the key:
    TypeLib
53. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD893-BB45-11CF-9ABC-0080C7E7B78D}
54. Still in the left panel, locate and delete the key:
    ProxyStubClsid
55. Again Still in the left panel, locate and delete the key:
    ProxyStubClsid32
56. Again Still in the left panel, locate and delete the key:
    TypeLib
57. 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_LOCAL_MACHINE>BCD00000000>Objects>{GUID}>Elements>250000e0
3. In the right panel, locate and delete the entry:
   Element = 01 00 00 00 00 00 00 00
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>BCD00000000>Objects>{GUID}>Elements>16000009
5. In the right panel, locate and delete the entry:
   Element = 00
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>InprocServer32
7. In the right panel, locate and delete the entry:
   ThreadingModel = Apartment
8. Again In the right panel, locate and delete the entry:
   "" = %All Users Profile%\MSWINSCK.OCX
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}
10. In the right panel, locate and delete the entry:
    "" = Microsoft WinSock Control, version 6.0
11. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock
12. In the right panel, locate and delete the entry:
    "" = Microsoft WinSock Control, version 6.0
13. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock>CLSID
14. In the right panel, locate and delete the entry:
    "" = {248DD896-BB45-11CF-9ABC-0080C7E7B78D}
15. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock>CurVer
16. In the right panel, locate and delete the entry:
    "" = MSWinsock.Winsock.1
17. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock.1
18. In the right panel, locate and delete the entry:
    "" = Microsoft WinSock Control, version 6.0
19. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>MSWinsock.Winsock.1>CLSID
20. In the right panel, locate and delete the entry:
    "" = {248DD896-BB45-11CF-9ABC-0080C7E7B78D}
21. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>VersionIndependentProgID
22. In the right panel, locate and delete the entry:
    "" = MSWinsock.Winsock
23. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>ProgID
24. In the right panel, locate and delete the entry:
    "" = MSWinsock.Winsock.1
25. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>TypeLib
26. In the right panel, locate and delete the entry:
    "" = {248DD890-BB45-11CF-9ABC-0080C7E7B78D}
27. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>Version
28. In the right panel, locate and delete the entry:
    "" = 1.0
29. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>MiscStatus
30. In the right panel, locate and delete the entry:
    "" = 0
31. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>MiscStatus>1
32. In the right panel, locate and delete the entry:
    "" = 132497
33. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD896-BB45-11CF-9ABC-0080C7E7B78D}>ToolboxBitmap32
34. In the right panel, locate and delete the entry:
    "" = %All Users Profile%\MSWINSCK.OCX, 1
35. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD897-BB45-11CF-9ABC-0080C7E7B78D}
36. In the right panel, locate and delete the entry:
    "" = Winsock General Property Page Object
37. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{248DD897-BB45-11CF-9ABC-0080C7E7B78D}>InprocServer32
38. In the right panel, locate and delete the entry:
    "" = %All Users Profile%\MSWINSCK.OCX
39. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0
40. In the right panel, locate and delete the entry:
    "" = Microsoft Winsock Control 6.0
41. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0>FLAGS
42. In the right panel, locate and delete the entry:
    "" = 2
43. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0>0>win32
44. In the right panel, locate and delete the entry:
    "" = %All Users Profile%\MSWINSCK.OCX
45. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>TypeLib>{248DD890-BB45-11CF-9ABC-0080C7E7B78D}>1.0>HELPDIR
46. In the right panel, locate and delete the entry:
    "" = IMSWinsockControl
47. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD892-BB45-11CF-9ABC-0080C7E7B78D}>ProxyStubClsid
48. In the right panel, locate and delete the entry:
    "" = {00020424-0000-0000-C000-000000000046}
49. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD892-BB45-11CF-9ABC-0080C7E7B78D}>ProxyStubClsid32
50. In the right panel, locate and delete the entry:
    "" = {00020424-0000-0000-C000-000000000046}
51. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD892-BB45-11CF-9ABC-0080C7E7B78D}>TypeLib
52. In the right panel, locate and delete the entry:
    "" = {248DD890-BB45-11CF-9ABC-0080C7E7B78D}
53. Again In the right panel, locate and delete the entry:
    Version = 1.0
54. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD893-BB45-11CF-9ABC-0080C7E7B78D}
55. In the right panel, locate and delete the entry:
    "" = DMSWinsockControlEvents
56. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD893-BB45-11CF-9ABC-0080C7E7B78D}>ProxyStubClsid
57. In the right panel, locate and delete the entry:
    "" = {00020420-0000-0000-C000-000000000046}
58. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD893-BB45-11CF-9ABC-0080C7E7B78D}>ProxyStubClsid32
59. In the right panel, locate and delete the entry:
    "" = {00020420-0000-0000-C000-000000000046}
60. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Interface>{248DD893-BB45-11CF-9ABC-0080C7E7B78D}>TypeLib
61. In the right panel, locate and delete the entry:
    "" = {248DD890-BB45-11CF-9ABC-0080C7E7B78D}
62. Again In the right panel, locate and delete the entry:
    Version = 1
63. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Control Panel>Desktop
64. In the right panel, locate and delete the entry:
    TileWallpaper = 0
65. Again In the right panel, locate and delete the entry:
    WallpaperStyle = 10
66. Again In the right panel, locate and delete the entry:
    Wallpaper = %All Users Profile%\1.bmp
67. Again In the right panel, locate and delete the entry:
    OriginalWallpaper = %All Users Profile%\1.bmp
68. Again In the right panel, locate and delete the entry:
    ConvertedWallpaper = %All Users Profile%\1.bmp
69. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
70. In the right panel, locate and delete the entry:
    BWGBXD = "%All Users Profile%\{Malware name}.exe" -ui
71. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
72. In the right panel, locate and delete the entry:
    BWGBXD = "%All Users Profile%\{Malware name}.exe" -ui
73. 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:
   
   • %All Users Profile%\{Malware name}.exe
   • %All Users Profile%\chk.dat
   • %All Users Profile%\MSWINSCK.OCX
   • %All Users Profile%\encryptedfiles.eco
   • %Windows%\Logs\WindowsBackup\Wbadmin.0.etl
   • %Public%\Desktop\README - Decryption Note.lnk
   • %Public%\Desktop\Decryptor.lnk
   • %All Users Profile%\note.ini
   • %All Users Profile%\1.bmp
   • %Windows%\Web\Wallpaper\Windows\img0.jpg
   • %User Temp%\MpCmdRun.log
   • %All Users Profile%\x86.exe
   • %All Users Profile%\recover.exe
   • %All Users Profile%\rps.exe
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).