Svchost.exe, or Service Host, is a Windows system file. It controls the various services or startup applications that run in the background of your Windows PC.
follow below steps to emove this..
Turn off System Restore if the operating system of the infected computer is operating with either Windows Me or Windows XP.
Restart the computer in safe mode and log in as an administrator. Press "F8" after the first beep occurs during start-up, before the display of the Microsoft Windows logo. Select the first option to run "Windows in Safe Mode" from the selection menu.
Remove any program files from the computer. Go to "Start," choose "Control Panel" and then select "Add/Remove Programs." Remove any programs referencing scvhost.exe. If none are listed, continue to next Step. The malware program does contain hidden files that may not be deleted as part of the software removal process. In this case, it is likely that the program will reappear upon reboot. Continue to follow the steps below completely to avoid reinstallation.
Use the Windows Search tool to determine if scvhost.exe exists on the hard drive. Go to "Start,"select "Search" and choose "All Files and Folders." Type "scvhost.exe" in the "All or Part of the File Name" section. Select "All Local Hard Drives" from the "Look in:" drop-down list for the best results. Click "Search."
Use the Windows Task Manager to end any scvhost.exe processes that are running. Press "Ctrl," "Alt" and "Del" simultaneously to open Task Manager. Select the "Processes" tab, select "scvhost.exe" and "End Process."
Click on "Start," select "Run" and type "msconfig." Press "Enter." Remove check marks next to any scvhost.exe and runouce.exe entries on the "Start-up" tab. Save changes and exit to the desktop.
Click on "Start," choose "Run" and type in "regedit." Press "Enter." Press "Ctrl+F," type "scvhost.exe" in the search field and delete all related entries. Repeat this search and remove process for runouce.exe entries. Exit the registry.
Click on "Start," choose "Run" and type in "cmd." Press "Enter" to access the command prompt and unprotect any files that need to be deleted. Type "cd", press the space bar and type "\windows\system" to access the directory where the virus files reside. From the command prompt, type "attrib -a -s -h -r scvhost.exe". Repeat this process for runouce.exe.
Rename each file to a text file so the program cannot load. Type "ren scvhost.exe scvhost.txt" and press "Enter." Then type "ren runouce.exe runouce.txt" and press "Enter."
Create new blank executable files with the same malware file names so the Trojan will not download new file copies and repair itself. Type "edit scvhost.exe" and press "Enter." Save the file and exit. Then type "edit runouce.exe" and press "Enter." Save the file and exit. Type "exit" from the command prompt and press "Enter" to return to the desktop operating system.
Use the Windows Search tool to locate and remove all temp files. Go to "Start," select "Search" and choose "All Files and Folders." Type "*.tmp" in the "All or Part of the File Name" section. Select "All Local Hard Drives" from the "Look in:" drop-down list for the best results. Click "Search." Right-click on each temp file and select "Delete" from the shortcut menu.
Reboot the PC normally.
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