Auditing Scenarios for Web Application Hosted in IIS - Part 4 - Files being written to folder
Published Feb 08 2023 11:04 AM 4,915 Views
Microsoft

I have come across a few instances Root Cause Analysis (RCA) was requested for issues related to a web application that were caused by factors such as:

  • Changes in permission of the Application Root folder.
  • Web site being deleted.
  • SSL certificate binding modified.

 

Furthermore, there were times when using Process Monitor - Sysinternals | Microsoft Learn was not possible because the problem was intermittent, such as when files were being written to C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys at irregular intervals.

 

The steps below assisted me in enabling auditing to log the necessary events in each scenario.  Please feel free to check other parts of this blog:

 

 

Scenario 4: Files being written to folder:

 

  1. Apply a basic audit policy on a file or folder (Windows 10) - Windows security | Microsoft Learn
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    • We can enable auditing for create files/ write data, please refer below (C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys or <folder to be Audited>>> properties >> security >> advanced >> auditing >> add >> show advanced permissions):

   2. Enable File System Auditing:

  • Open Local Security Policy Editor (run >> secpol.msc)
  • Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> Audit File System >> configure for success and failure.
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Happy Troubleshooting!

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Last update:
‎Apr 07 2023 03:52 PM
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