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Windows 7: What is this 3GB file? MSSDMC?

29 Jan 2010   #1

Windows 7 Ultimate 32 and 64 bit
 
 
What is this 3GB file? MSSDMC?

There's this huge 3GB file in C:\Users\myusername\AppData\Local\Temp\MSSDMC
that has a long encoded name that I can't figure out what it is.

I f'ing Googled MSSDMC and there were 0 results. Zero. WTF?

Anyone got any info on this? I'm deleting it and seeing if it comes back.



Attached Thumbnails
What is this 3GB file?  MSSDMC?-mssdmc.jpg  
My System SpecsSystem Spec
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29 Jan 2010   #2

Windows 7 Professional x64
 
 

Hello,

I wonder if that is a virus. It is suspiciously close to the file MSSDMN.

While that is not necessarily correct, running a virus scan is never a bad idea.

I recommend Malwarebytes if you suspect your computer is infected.
My System SpecsSystem Spec
29 Jan 2010   #3

Vista Ult64, Win7600
 
 

Delete it, it is in the Temp folder.
My System SpecsSystem Spec
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29 Jan 2010   #4

Windows 7 Ultimate 32 and 64 bit
 
 

@Johnathan_King - I don't suspect a virus, my system has had AV scans daily since it's inception. Also confirmed by scanning the files directly.

@jfar - probably what I'll do.

Interestingly I did a google search on the file name (hash) and it came back as a SHA256 for the ISO of Windows 7 on some French blog. Crazy! 63C02E9F0B91061203CA67D71456EA0F8A8C5C90134439C707DE32090251391E - Google Search=

I'm thinking it's like a temporary file for Windows setup? I was just curious if anyone else had this file in their temp directory.
My System SpecsSystem Spec
30 Jan 2010   #5
Dom

Windows Seven Ultimate
 
 

After you deleted it manually, run disk cleanup (type in start menu search) to remove any other temp files.
My System SpecsSystem Spec
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 What is this 3GB file? MSSDMC?




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