Actually, the subject is "Use this patch immediately!".
I haven't even opened the e-mail, but I knew enough to check the message source and see what it says without opening it.
'Microsoft' wrote:Dear friend , use this Internet Explorer patch now!
There are dangerous virus in the Internet now!
More than 500.000 already infected!
Sounds pretty fake to me. "There are dangerous virus in the Internet now!". Not even proper grammer. Why three decimal places? Oh, right. I forgot that my .001 computers got infected.
So, a warning to you. If you get this e-mail, do not open it. If you open it, don't download the "patch".