MasterCard spam leads to Fake AV

We’re seeing a significant “spam attached malware” campaign in the past 48 hours with different attachment MD5s. 3305f83abf31fc66fa8f588b35be8eb2 8e3331b64a5884e1ef4f4c8a3d09bc7a The username portion of the email sender is random, using a classic misspelling that has been consistent. Usernames are a single word, followed by a “.”, “_” or “-“, followed by a two or three digit […]