Welcome to the PC Pitstop Process Library. We have an extensive list of the most common processes currently running on PCs. Use this library to inspect the safety of your running processes on a regular basis.

Click here to run our free scan and see if your computer's processes are safe. To find out how to make your computer faster, try running our Free PC Matic Scan.

Search For Processes

Process Name

  

Unknown Unknown
Safe Safe
User Optional User Optional
Unwanted Unwanted
Spyware / Adware Spyware / Adware
Virus Virus


More than one possible match was found; all matches are listed below in order of their prevalence. This only tells you what the file and the correct action might be.

To understand which possibility is actually running on your own system, perform an Overdrive test and then look at the Software|Processes tab.

You may find more information on this process by visiting Process Detail Pages.


Match #1



smss.exe (Session Manager SubSystem )

Percentage of recently scanned PC's with this process running: 30.95%
Average CPU use for this program: 0%
Average RAM for this program: 0 MB


In addition to the file name, smss.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor contains:Microsoft
Product contains:Microsoft

To view version information with Windows Explorer, right-click the file and click Properties, Version.


Vendor or Distributor's Web Site

http://www.microsoft.com/


Detailed Description and/or Removal Instructions

http://www.hardavenue.com/a/Smss.exe.php


Win Patrol

SMSS.EXE - The session manager subsystem is responsible for starting the user session. *CHECK THE PATH* \Windows\system32\smss.exe is the legitimate file.

smss.exe  is an essential part of Windows and required for Windows to work properly. It should never be disabled.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.


MD5 hashes is the way that computers can define the uniqueness of a file. Anti malware vendors frequently use this technique to detect and clean malware. It is common for a program to have multiple MD5 hashes as the developers create newer versions of the program. For the program called smss.exe, we have detected more than 10 different MD5 hashes. Click on a hash to research the hash in Google.

Program Name MD5 Count
smss.exe> 10
MD5 Hashes
# MD5 Size
1 0x0ee59e180ea2fec3125ff934562d5c06 18944 bytes
2 0xf6cc7263ba84949eba2e6f718d75ec41 51712 bytes
3 0x5f816c1f539266d2d4c78694239da0b5 50688 bytes
4 0xbd7fb0957c716f1a60333aee04de2178 50688 bytes
5 0x4a3baa168ad14f39e599772e8e020a6c 50688 bytes
MD5 Hashes
# MD5 Size
6 0xed12d92a7b26e99e3a5bf4b043f7314e 45568 bytes
7 0xd9ab90b6547481c93e40af206d10f90f 50688 bytes
8 0x6701ddaf68bede6bbeea9d514d73a35b 64000 bytes
9 0x50f869c638e7892699734816d423236f 50688 bytes
10 0x47aa35c22def2b265449b7ccdf4251ae 50688 bytes

Match #2



smss.exe (SMSS.exe)

Percentage of recently scanned PC's with this process running: 0.02%
Average CPU use for this program: 0%
Average RAM for this program: 6 MB


In addition to the file name, smss.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor is not specified
Product is not specified
File name contains:ystemRoot\System32\smss.exe

To view version information with Windows Explorer, right-click the file and click Properties, Version.




Win Patrol

SMSS.exe -

smss.exe  is returning insufficient information about this program.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.



Match #3



smss.exe (Dalbug/Ladex worm)

Percentage of recently scanned PC's with this process running: 0.00%
Average CPU use for this program: 0%
Average RAM for this program: 0 MB


In addition to the file name, smss.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor contains:?
Product is not specified
File name contains:\win

To view version information with Windows Explorer, right-click the file and click Properties, Version.



Detailed Description and/or Removal Instructions

http://securityresponse.symantec.com/avcenter/venc/data/w32.dalbug.worm.html


PC Pitstop PC Matic

SMSS.exe - The smss.exe which is from Microsoft is located at c:\windows\system32\smss.exe . There are several viruses that disguise themselves as smss.exe to hide from detection. Adware.Advision - Symantec Corporation Adware.DreamAd - Symantec Corporation Backdoor.IRC.Aladinz.O - Symantec Corporation Backdoor.IRC.Flood.F - Symantec Corporation W32.Dalbug.Worm - Symantec Corporation W32.Resdoc - Symantec Corporation

smss.exe is a VIRUS. Stop all work until the virus is removed or you run the risk of spreading the virus to other people. Worse yet, the virus may be doing harm to your computer and your information.

smss.exe is a virus and should be removed immediately to avoid doing further harm. PC Pitstop recommends PC Matic in these types of situations.


MD5 hashes is the way that computers can define the uniqueness of a file. Anti malware vendors frequently use this technique to detect and clean malware. It is common for a program to have multiple MD5 hashes as the developers create newer versions of the program. For the program called smss.exe, we have detected more than 10 different MD5 hashes. Click on a hash to research the hash in Google.

Program Name MD5 Count
smss.exe> 10
MD5 Hashes
# MD5 Size
1 0xf8875f29c07882b3b269e8da3d57551a 11081 bytes
2 0xd208a2b34ee5aeec596282c15c9e45de 700416 bytes
3 0xa1394e9ddfcbba195024f653bfdbc87f 18494 bytes
4 0xf35afe7efff0b91a533c975898db57eb 3428352 bytes
5 0x11b0132343f91101567d8a3dba552bb0 3428352 bytes
MD5 Hashes
# MD5 Size
6 0x0fe90564a1a8cf864fcdb6c711de729c 15143 bytes
7 0x82b0b65357a6951cdf40b7a95d6f2333 11776 bytes
8 0xd8e587f794437fddb693b5fc5e2e704a 49152 bytes
9 0x166225f066aed62a24b1361fea85b854 28672 bytes
10 0x73f7bcc441d7164d4673a054eb5d7cf4 98816 bytes


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PC Pitstop is the undisputed leader in PC diagnostics. Our running process library is culled from our database of over 100 million PC diagnostics and scans.

To find the latest driver for your computer we recommend running our Free Driver Scan.

Find out how to make your computer faster by running our Free Performance Scan.

Tips from the PitCrew

Tips from the Pit Crew

Every process running on your computer takes up CPU cycles and valuable memory. For optimal PC performance and resource utilization, you should be aware of every process on your computer. PC Pitstop designed this process library to help you know which processes are worthwhile and others that slow system performance.

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Important Note

A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory.

If you are unable to identify a file, ask about it in our forums after running our full tests.