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What is "FNTCACHE.DAT"

by koberaptor / July 18, 2010 8:38 AM PDT

I found this file in my system32 folder (C:\Windows\System32\FNTCACHE.DAT) and it looks unfamiliar. Is it a virus? Is it harmful? please tell me thanks

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A Quick Google Check
by tobeach / July 18, 2010 12:07 PM PDT
In reply to: What is "FNTCACHE.DAT"

seems to indicate this as a Windows system file to handle various fonts on your machine. Have you added any non-MS fonts to machine?

Are you experiencing abnormal behavior at present either in font behavior (distortion) or other normal functions? If not, then unlikely
an infection and can leave alone. If you delete the folder,perhaps because has grown very large, it will re-form at next boot-up.

NOTE: You haven't give OS & SP levels of your machine or other protectors on board so following is based on being XP SP2 or higher!!

I have seen worries that it may be a rootkit (perhaps stealing a legit Win folder name)so you could try a couple of scans just for ease of mind: Following are free and should find rootkits if on board:

Malwarebytes MBAM: http://www.malwarebytes.org/

F-Secure Blacklight:
http://www.f-secure.com/en_EMEA/security/tools/blacklight/

please post back w/ decision/results of scans (especially IF scans reveal problems) for further help as needed. Good Luck! Happy

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You Can Also Copy & Paste
by tobeach / July 18, 2010 12:18 PM PDT
In reply to: A Quick Google Check
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