A fake Verizon Wireless email with the subject “Your credit balance is over its limit” is currently making rounds.

Dear Verizon Wireless customer,

Your credit balance is over its limit. Please use the attached Verizon Wireless Balance Checker Tool to review and analyze your payments.

Yours sincerely,
Verizon Wireless Customer Services

The email contains an attachment called “balancechecker.zip” which is really Trojan Sasfis/Oficla. If executed Sasfis will run silently in the background and download and install additional malware.

http://www.virustotal.com/analisis/c98767c0a51b0ca83d1708beb89f03296394f11f4fd17fc93f3b6d6fbf1686a9-1258535039