The MpSigDwn.dll is a Signature Download Utility.
This file is part of Windows Defender. MpSigDwn.dll is developed by Microsoft Corporation. It’s a system and hidden file. MpSigDwn.dll is usually located in the %PROGRAM_FILES% sub-folder and its usual size is 134,200 bytes.
Author: Microsoft CorporationProcess: Signature Download UtilityPart Of: Windows DefenderCommon path(s): subfolder in %PROGRAM_FILES%
subfolder in %WINDOWS%Keywords(s): systemFilesize(s): 134,200 bytes
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