We’ve had a number of reports today of email, supposedly from Microsoft, claiming to contain an update for Microsoft Outlook. The messages are well-formatted and look like they could have come from Microsoft, but they did not – the attachment is a ‘trojan’ and opening it on a Windows machine is likely to infect your computer, causing you to become part of the spambot network and start sending these messages (and more).
A surprising number of these messages made it through both Postini’s filters and ours earlier today – we’re catching them now, but you may have already received one. If you did receive one, delete it (and definitely do NOT open the attachment).
Sample:
Update for Microsoft Outlook / Outlook Express (KB910721)
Brief Description
Microsoft has released an update for Microsoft Outlook / Outlook Express. This update is critical and provides you with the latest version of the Microsoft Outlook / Outlook Express and offers the highest levels of stability and security.