1. Symantec/
  2. Security Response/
  3. Adware.Slagent


February 13, 2007 11:37:15 AM
Risk Impact:
File Names:
mslagent.exe 2_mslagent.dll navpmc.exe 2_navpmc.dll uninstaller.exe
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


Adware.Slagent contacts a Web site for advertising purposes.

This adware program can terminate its own process, and then download and execute files from the Internet without notifying the user.

  • Definitions dated March 8, 2005 or earlier may detect this threat as Adware.Slagent.B
  • Definitions dated April 25, 2004 or earlier may detect this threat as Trojan.Simcss.B.


One or more files is detected as Adware.Slagent.

One or more of the following folders may exist:

  • %Windir%\navpmc
  • %Windir%\mslagent


Bundled with certain adware-enabled software.

Antivirus Protection Dates

  • Initial Rapid Release version October 2, 2014 revision 022
  • Latest Rapid Release version January 24, 2017 revision 032
  • Initial Daily Certified version March 10, 2004 revision 002
  • Latest Daily Certified version January 25, 2017 revision 001
  • Initial Weekly Certified release date March 10, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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