IIS Application Pools Crashing Due to New Cylance Agent Push





Description of Issue

IIS Application Pools crash immediately after they are accessed and will not stay running



Context
  • Munis

  • Munis Self Service

  • Tyler Hub

  • IIS Application Pools



Cause

This was due to an update for the Cylance Anti Virus Agent



Resolution

The following exclusions should be added to the Anti Virus exclusion policy assigned to IIS/Web servers in the organization:

  • C:\Windows\SysWOW64\inetsrv\w3wp.exe

  • C:\Windows\System32\inetsrv\w3wp.exe