Microsoft Malware Protection Signature Update Stub

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Le processus Microsoft Malware Protection Signature Update Stub appartient au logiciel Microsoft Malware Protection de la compagnie Microsoft (www.microsoft.com). Description: Windows n'a pas besoin de MPSigStub.exe.

Discussion in 'Windows XP' started by janeinpa, Jul 27, 2007.

Microsoft
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Microsoft Malware Protection Signature Update Stub

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Microsoft Malware Protection Signature Update Stubborn

Short URL to this thread: https://techguy.org/601290

Windows Defender Security Center

I just noticed a strange folder on the root of my D drive (which FWIW is an external, USB connected drive). It's a long, seemingly random alphanumeric string. Inside the folder is the file 'SigStub.exe'. File -> Properties describes it as 'Microsoft Malware Protection Signature Update Stub' and it appears to have a valid digital signature issued by 'Microsoft Code Signing PCA'.
A little Googling comes up with a few posts like this and it seems this is a recent thing. My guess is that it showed up after the recent WGA changes. It doesn't seem to be malware. However, I am confused as to why it would appear on my D drive and not C, and why it's in a folder with such an ambiguous name.
Anyone else got it? Anyone got any more info on what this thing is and why MS have (apparently) put it there?

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