This e-mail has its title as "Update your Windows" and contains malicious file.
Besides, this mail is disguised as sent by Microsoft and induces user to download its attachment.
2. Spreading path and symptoms of infection
Detail is as following.
Furthermore, this mail is disguised as Windows Update related contents and induces user to download attachment for updating. The rumor has that "Steve Lipner is a name of Microsoft's employee."
Upon downloading attachment, victim can see ZIP file and get exe file as same as ZIP file's name.
Its name is same as normal Windows update file.
Upon executed exe file, its clone will be generated on certain path and it will change registry value.
3. How to prevent
To use PC safely from security threats of these malicious attachments, we recommend following "Security management tips" for general users.
INCA Internet (Security Response Center / Emergency Response Team) provides diagnosis/treatment function with “nProtect Anti-Virus/Spyware” for detecting such as malicious file stated above and runs responding system against various security threats.