Re:

["Rupam Phukan" <rupam () kamarupa com>]

Microsoft *does not*, repeat *does not* mail out security updates. Its clear for anyone to see on their website.
You've been had by a (not too clever) social engineer.
do a portscan on your system to see what services have been opened.
and never,never open attcahments from peiople you dont know.remember.. email addresses can be spoofed.
just coz NAV doesnt recognize it as a virus doesnt mean it isnt. maybe it is a virus.. too new for the scanning engine 
to recognize.
all i know is that it is definitely not from microsoft.
cheers!
Rupam.

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