What is Nmain.exe

Symantec Integrator - Client and Host Security Platform - Symantec Corporation

File description

Nmain.exe with description Symantec Integrator is a process file from company Symantec Corporation belonging to product Client and Host Security Platform.
The file is digitally signed from Symantec Corporation - VeriSign Time Stamping Service
We do not recommend removing digitally signed files from Symantec Corporation

What is nmain.exe?
This is the Norton Integrator or the Symantec Integrator. It is process that executes when you open the main window of Norton AntiVirus, Norton Personal Firewall, or any other Norton software. It is a component that is included with most Symantec Norton products.

This process is not essential to the proper operation of the system; however, it is essential to the proper operation of your Norton products. If it causes problems for you and you wish to disable it, you should uninstall the Norton software properly. Killing the process or disabling the service will result in your Norton window closing.

Dangers of nmain
As this is a legitimate process that is installed on most systems with Norton software, it is common for virus writers and spyware vendors to disguise their malware as the genuine one.

Some malicious files may have the same name as this process but be stored somewhere other than in a Symantec- or Norton-related directory under %ProgramFiles%. Other malware may 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 should typically be no more than one instance of nmain.exe running at a given time on a system. The presence of multiple instances may be an indicator of a malware infection. If you do not have any Symantec Norton products installed, the presence of this process is a likely indicator of a malware infection.

Common problems
  • This process starts using 100% CPU
    • This could be caused by a virus on your system. Try running a scan in safe mode.
    • If the problem persists, try reinstalling your Norton software.
  • "Program Error-Nmain.exe has generated errors and will be closed by Windows..."
    • Close all Norton programs, and then delete the contents of the Quarantine directory (typically %ProgramFiles%\Norton AntiVirus\Quarantine). Reboot your system.
    • If the problem persists, try reinstalling your Norton software, deleting the %ProgramFiles%\Norton AntiVirus\Quarantine and %ProgramFiles%\Common Files\Symantec Shared\VirusDefs directories between the uninstall and reinstall.

Automatic startup locations

001 Running Processes
003 Autorun registry entries Current User
005 Current user startup startmenu
073 %windir%\Tasks

Digital signatures found for this file

    Certificate 
7 Symantec Corporation - VeriSign Time Stamping Service
6 Symantec Corporation - VeriSign Time Stamping Services Signer
1 Netpia Inc. - VeriSign Time Stamping Services Signer - G2

MD5 security rating in our database

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

User ratings for this file

File rating: Average rating of nmain.exe: by 29 files and users.

Application errors

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

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