Today I received an unsolicited e-mail from "Microsoft"
titled "Network Security Pack". It had two attachments,
Q421038_exe.dat (0 bytes) and antyvirinfo.txt (680
bytes). The e-mail says to "install now to protect your
computer...".
This looks very suspiciuos to me. It has the appearance
of coming from the real Microsoft Corp., but I have never
heard of such updates coming through e-mail before.
What should I do?