When I open my email in junk folder, I found an email with subject “Facebook Support. Your account is blocked. ID961″ from”Facebook Support” which includes a file named “Facebook_document_Nr0591.zip” attached which carries a Trojan horse.
And the contents of the email are as follows:

A spam is sent from your Facebook account.
Your password has been changed for safety.

Information regarding your account and a new password is attached to the letter.
Read this information thoroughly and change the password to complicated one.

Thank you for your attention,
Facebook Service.

This makes me more suspicious and more intrigued with that email, I opened the source code of the email, and the email was sent using Microsoft Outlook Express 6.
There are other interesting things contained in this email, which has a hidden love messages as follows: :)

That is the reason why I suffer, my beloved.If you deceived me, my dear, I should not reproach you for that; on the contrary, I should be grateful to you. Nothing is so legitimate, so human, as to deceive pain. What would become of us if women had not for us the pity of untruth? Lie, my beloved, lie for the sake of charity. Give me the dream that colors black sorrow. Lie; have no scruples. You will only add another illusion to the illusion of love and beauty. She, kneeling, with the supple palms of her hands enveloped his temples and his cheeks. He said again that he was mad to be anxious about a chance and commonplace meeting. She forced him to believe her, or, rather, to forget. He no longer saw or knew anything. His vanished bitterness and anger left him nothing but the harsh desire to forget everything, to make her forget everything. You can believe that I ever was to another what I am to you! You wound me in my most susceptible sentiment, in my love for you. I do not forgive you for this. I love you!

According to Sophos, It’s possible that the attackers are attempting to exploit the problems many female Facebook users had this week when the social network disabled many accounts by accident.

If you receive any email that has the subjects lines indicated above, please delete it immediately.

Also see :
http://www.techjaws.com/facebook-password-changed-email-comes-with-malware/
http://nakedsecurity.sophos.com/2010/11/18/new-password-from-facebook-beware-widely-spread-malware-attack/