Following an update of Friefox to version 5.0 I have had trouble with a file which was deemed malicious by AVG antivirus software, the file is ASC.EXE - is this file part of my update, or do I have a virus which needs deleting?

Question

Firefox does not seem to have fully updated, so I suspect that this file which has been blocked by AVG anti-virus is an element of the update (it was created around 10 minutes after the update began).
Most of my programmes fail to launch while this file is in the virus vault, e.g. Microsoft Word and iTunes, I have an error message which says the files are
Is such an ASC.EXE file part of the update?
I have done some online research into this file type and do not wish to remove it from the virus vault until I am sure it is not a trojan, which seems possible from the sites I have visited.

Answer 1

'''Whenever you get a message / popup that'''
'''software / files need to be updated;'''
<u>'''DO NOT USE ANY OF'''</u>
<u>'''THE PROVIDED LINKS'''</u>
While this may be a legitimate message, it could also be <u>'''''Malware or a Virus'''''</u>.
Any time you want or need to check for upgrades,
go to the web site of the <u>'''''True Owner'''''</u> of the program in question.
For example, to check out Firefox, go to '''''[https://www.mozilla.org Mozilla.org]'''''. {web link}
You can sent a report to '''The FBI''' via their web site
'''''[http://www.ic3.gov/complaint/default.aspx Internet Crime Complaint Center (IC3)]''''' {web link}
You can also report such a site at;
'''''[http://www.google.com/safebrowsing/report_phish/ Google Report Phishing Page]''''' {web link}
which is the same when done while on site by going to
'''''Help > Report Web Forgery'''''
'''''[http://www.mozilla.org/en-US/legal/fraud-report/ Help us safeguard Mozilla’s trademarks by reporting misuse]''''' {web link}