TROJ_RANSOM.EHA

To identify and delete of malware/grayware files:

• On Windows XP and Server 2003 systems:

1. Insert your Windows Installation CD in your CD-rom.
2. Press the restart button of your computer.
3. When prompted, press any key to boot from the CD.
4. When prompted on the Main Menu, type r to enter the recovery console.
   (Note: On Windows 2000, after pressing r, type c to choose the Recovery Console in the repair options screen.)
5. When prompted, type your administrator password to log on.
6. Once logged in, type the drive that contains Windows in the command prompt that appears, then press Enter.
7. Type the drive that contains Windows, then press Enter.
8. Type the following, then press Enter:
   SET AllowAllPaths = TRUE
   del {malware/grayware path and file name}
9. Repeat the above procedure for all files detected earlier.
10. Type exit to restart the system.

• On Windows Vista, 7, and Server 2008 systems:

1. Insert your Windows Installation DVD in the DVD drive, then restart your computer.
2. When prompted, press any key to boot from the DVD.
3. Depending on your Windows Installation DVD, you might be required to select the installation language. Then on the Install Windows window, choose your language, locale, and keyboard layout or input method. Click Next, then click Repair your computer.
4. Select Use recovery tools that can help fix problems starting Windows. Select your installation of Windows. Click Next.
5. If the Startup Repair window appears, click Cancel, Yes, then Finish.
6. In the System Recovery Options window, click Command Prompt.
7. In the Command Prompt window, type the following then press Enter:
   BootRec.exe /fixmbr
   del "{malware/grayware path and file name}"
8. Repeat the above procedure for all files detected earlier.
9. Type exit and press Enter to close the Command Prompt window.
10. Click Restart to restart the system normally.

• On Windows 8, 8.1, and Server 2012 systems:

1. Insert your Windows Installation DVD in the DVD drive, then restart your computer.
2. When prompted, press any key to boot from the DVD.
3. Depending on your Windows Installation DVD, you might be required to select the keyboard layout. Then on the Windows Setup window, choose your language, locale, and input method. Click Next, then click Repair your computer.
4. Click Troubleshoot>Advanced Options>Command Prompt.
5. In the Command Prompt window, type the following then press Enter:
   BootRec.exe /fixmbr
   del "{malware/grayware path and file name}"
6. Repeat the above procedure for all files detected earlier.
7. Type exit and press Enter to close the Command Prompt window.
8. Click Continue to restart the system normally.

To delete the registry value this malware/grayware created:

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_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   svchost = "%System Root%\ProgramData\local\svchost.exe"
4. Close Registry Editor.

To delete the registry key this malware/grayware created:

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>Software
3. Still in the left panel, locate and delete the key:
   WinRAR SFX
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services
5. Still in the left panel, locate and delete the key:
   netprofms
6. Again Still in the left panel, locate and delete the key:
   WdiServiceSysHost
7. Close Registry Editor.

To restore registry values this malware/grayware modified:

1. Open Registry Editor. To do this:
   
   • On Windows 2000, XP, and Server 2003:
     Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
   • On Windows Vista, 7, and Server 2008:
     Click the Start button, type REGEDIT in the Search input field then press Enter.
   • On Windows 8, 8.1, and Server 2012:
     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_USERS>.DEFAULT>Software>Microsoft>Windows>CurrentVersion>Explorer>Shell Folders
3. In the right panel, locate the registry value:
   AppData = "%System Root%\Documents and Settings\LocalService\Application Data"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   AppData = %System Root%\Documents and Settings\NetworkService\Application Data
5. Close Registry Editor.

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
   
   • %System%\csrsstub.exe
   • %System%\tcpsvcss.exe
   • %System%\tracerpts.exe
   • %System Root%\how to decrypt aes files.lnk
   • All Users' %Desktop%\how to decrypt aes files.lnk
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:
   
   • %System%\csrsstub.exe
   • %System%\tcpsvcss.exe
   • %System%\tracerpts.exe
   • %System Root%\how to decrypt aes files.lnk
   • All Users' %Desktop%\how to decrypt aes files.lnk
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 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:
   
   • %System Root%\decrypt
   • %System Root%\ProgramData\local
   • %Application Data%\WinRAR
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.