What is Sqlservr.exe

SQL Server Windows NT - Microsoft SQL Server - Microsoft Corporation

File description

Sqlservr.exe with description SQL Server Windows NT is a process file from company Microsoft Corporation belonging to product Microsoft SQL Server.
The file is digitally signed from Microsoft Corporation - Microsoft Time-Stamp Service
We do not recommend removing digitally signed files from Microsoft Corporation

What is sqlservr.exe?
This is the main process for the Microsoft SQL Server.

The execution of this process is not essential to the operation of the system; however, if you are knowingly running the Microsoft SQL Server, you should not terminate it, as it will disable your server. If you do not need the Microsoft SQL Server running, you should properly uninstall it.

Dangers of sqlservr
As this is the name of a legitimate process that is found on any system with the Microsoft SQL Server installed, it is common for virus writers and spyware vendors to disguise their malware as the genuine one.

Some malicious files will have the same name but will be stored somewhere other than in %ProgramFiles%\Microsoft SQL Server\bin. Other malware will use a name that appears similar to that of the legitimate one but with slight differences in spelling or with appended digits. While there are currently no known viruses, Trojans, or adware applications that disguise themselves as this process, you should look out for the presence of this file in an incorrect location or with a slightly different name.

There will typically be no more than one instance of this process running at any given time. The presence of multiple instances may be indicative of a malware infection. If you are not running the Microsoft SQL server, however, the existence of this process is a strong indicator of a malware infection.

Common problems
  • This process uses a lot of memory
    • As this is a database server, this is probably normal. If it is using more than usual, however, ensure that the server is up-to-date.
  • This process uses 100% of the CPU
    • This can be caused by some security flaws in Microsoft SQL Server. Be sure that it is up-to-date.
    • If there are many queries per second on your database, this behavior is normal.

Automatic startup locations

001 Running Processes
010 Installed services

Digital signatures found for this file

    Certificate 
93 Microsoft Corporation - Microsoft Time-Stamp Service
43 Microsoft Corporation - Microsoft Timestamping Service
11 Microsoft Corporation - VeriSign Time Stamping Services Signer

MD5 security rating in our database

139 files (Not yet rated and not signed)
47 files (Not yet rated and digitally signed)
6 files (Safe and not signed)
115 files (Safe and digitally signed)
Some versions of this filename have not yet been checked for safety.
Warning: Some malware might rename itself to sqlservr.exe. Always make sure that your file is from a verified publisher.

User ratings for this file

File rating: Average rating of sqlservr.exe: by 307 files and users.

Application errors

Fix sqlservr.exe application error:  Run a FREE registry scan

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