Microsoft Folder with large number (486,692) of files



While looking into system perfomance, i found a folder with 400,000+ 384 byte
files, each with a guid as filename. there is one other file alongside folder
s-1-5-19 called CREDHIST

the folder is c:\documents and settings\localservice\application
data\microsoft\protect\s-1-5-19\

it shows as size 163MB, on disk 1.77GB creation date april 2008

it causes problems with search and virus scan although a dos scan reports it
and its contents to be clean. (mcafee) i alkso have windows defender
installed and it does not report any problems.

the folder i found originally was c:\documents and
settings\localservice\application data\microsoft\media
centre\protect\s-1-5-19\ but i deleted that to see what would happen and the
first named folder appeared in its place.

i am concerned that this is a trojan of some sort. however, it is possible
that it is a genuine microsoft system folder since s-1-5-19 is a localservice
id.

can anyone shed some light please?
.



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