What is svohost.exe?

The genuine svohost.exe file is a software component of Win32 Backdoor Trojan Virus.
"svohost.exe" is a win32 Trojan Virus that automatically makes changes to the Windows Operating System, such as adding registry and auto run entries, modifying legitimate Windows process files, and much more. It steals sensitive information such as passwords and uses keylogging.

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the svohost.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for svohost.exe related errors

Svohost.exe file information

Windows Task Manager with svohost
Svohost.exe process in Windows Task Manager

The process known as test appears to belong to software Microsoft Corperation or test by Microsoft Corperation (

Description: Svohost.exe is not essential for Windows and will often cause problems. The svohost.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 946,176 bytes (71% of all occurrences), 279,652 bytes, 31,354 bytes or 46,723 bytes. 
There is no file information. It is not a Windows core file. The software starts when Windows starts (see Registry key: MACHINE\Run, MACHINE\RunServices, Run, Winlogon\Shell). The program has no visible window. The svohost.exe file is located in the Windows folder, but it is not a Windows core file. The program uses ports to connect to or from a LAN or the Internet. Svohost.exe is able to record keyboard and mouse inputs, hide itself, monitor applications and manipulate other programs. Therefore the technical security rating is 94% dangerous, however you should also read the user reviews.

Recommended: Identify svohost.exe related errors

If svohost.exe is located in the C:\Windows folder, the security rating is 74% dangerous. The file size is 1,055,462 bytes (40% of all occurrences), 274,432 bytes, 176,128 bytes or 283,136 bytes. The svohost.exe file is a file with no information about its developer. The program has no visible window. It is an unknown file in the Windows folder. The file is not a Windows system file. Svohost.exe is able to monitor applications.

Important: Some malware also uses the file name svohost.exe, for example Artemis!B548CD36A8D3 (detected by McAfee), and Backdoor.Bifrose or W32.Spybot.Worm (detected by Symantec). Therefore, you should check the svohost.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

it is slowing down my computer
if it's deleted from system 32 causes seriously damage to internet explorer and windows explorer
i know that this file for windows
  alireza majidi  
My system is giving warning svohost.exe-corrupt file and due to this one of my htm file has gone corrupt
  Deepak Singh  
slow downs the computer
hides in reg @ "[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" remove this from there "svohost.exe" then look in c:\windows\system32\svohost.exe deleate from there as well, this will delete the spyware, but you will get an error message when you restart the computer saying that it cannot find "svohost.exe" i dont know the way to get rid of this error message, but if anyone does know please post :-)
  the happy hippy  
automaticllay type some links and slowdown system and disable task manager button
  Imran (LAN Admin)  
i want to get it
it is messing with my IE. Can't get the windows update because it redirects my page to Since i can't get the updates from any other browser i am really stuck. Ad-ware se does not seem to do anything about it
'Windows can not find 'c:\windows\system32\svohost.exe' always appear when computer start up after removing some trojan by anti-virus software.
  Peter Wu  
it makes many copies in local hd and removing it will not be much efective bcz it will bcome part of ur start up again and again and again .... there is no doubt about it that it is trojan
Trojan, loads chinese web sites in IE, doesn't allow to see hidden files
  Daniel   (further information)
Its stops you from double cicking desktop items you must right click open, It Cloggs up Firefox and slows browsing speeds.
  MAD J  
I manually detected the SVOHOST in taskmanager and I manager to found out that it is in C:/WINDOW/SYSTEM32. Unfortunately, I unable to delete it because it is hidden (it make my computer can view hidden file, even I go to the TOOL and FOLDER OPTION ) . My MCafee virus scan cant detect it ?
type "msconfig" on "start menu - Run", then on "startup" tab, untick the "svohost.exe". problem stop.
  Wong Chee Fei  
it is a hidden file that can find in system32. it is most probably a spyware.
Disable show hidden folder option and it is slowing down my computer
You can use windows defender to stop it at startup. It solves the problem then check your PC again with an antivirus
get the program hijackthis and remove all svchost components from the registry
I used someones flash and up this nuisance called svohost since then. Its most annoying when u start your computer. Now i cant open yahoo mesenger.
  Obinna Ezeji  
It gives me the error "Windows No Disk" in the error box is the message "There is no disk in the Drive, Please insert a disk into the drive" Fixed it, appearred to be a virus in my ipod, I had an autorun.inf file in my ipod which linked to sses.exe (I hope I spelled it right). So what it used to do is whenever i would double click on my ipod's icon in my computer it would start this program.
my icons are flashing and i cant access .txt files
  andrew tam say that BitDefender 7.2 and Ewido 4.0 find a Backdoor named Backdoor.Vb.BCO, Ikarus T3.1.1.8 find Backdoor.Win32.VB.bco, Webwasher-Gateway 6.0.1 find Win32.Malware.gen!88 (suspicious)
yep its a trojan avg detected it straight out
Fresh Windows installation do not have this file installed
This annoying file it hide it self under attrib +s +h command. to remove this, open up window command prompt type ATTRIB -A -S -H -R C:\WINDOWS\SYSTEM32\SVOHOST.EXE [hit enter key] then type again DEL C:\WINDOWS\SYSTEM32\SVOHOST.EXE [enter]
certainly a poweful virus that sometimes can even delete your files and data(not folders)from a logical can't find it cuz it's hidden and your folder option/view/show hidden files and folders does not disables error checking on hard drives and messes with your file system.nod32 can remove it.
  behneshat   (further information)
think most of users who think its WinOS file, are thinking of svchost.exe - not same, guys!
gluck to mouse

Rating chart

Summary: Average user rating of svohost.exe: based on 35 votes with 29 user comments. 3 users think svohost.exe is essential for Windows or an installed application. 4 users think it's probably harmless. One user thinks it's neither essential nor dangerous. 5 users suspect danger. 22 users think svohost.exe is dangerous and recommend removing it. 3 users don't grade svohost.exe ("not sure about it").

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Best practices for resolving svohost issues

A clean and tidy computer is the key requirement for avoiding problems with svohost. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the svohost.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

svohost.exe [all]