services.exe modifying synattackprotect?

[techlists () comcast net]

Why would 'C:\Windows\system32\services.exe' be trying to change the following registry key?

\REGISTRY\MACHINE\SYSTEM\ControlSet\SERVICES\TCPIP\PARAMETERS\SYNATTACKPROTECT

Is this an indication of an attack or a normal part of the 'services.exe' process?

PG 

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