SPAM REVIEW

The Spam Omelette #55

Welcome to the New Year and to a new issue of our Spam Omelette, the weekly review focused on the latest trends in the spam industry. It has been more than a year since the inception of our project dealing with visual representations of spam messages, but just in case you joined us of late, please take a look at our testing and map generation methodology, as explained our first issue

Week In review:  December 30 2009 – January 06 2010

Spam Omelette 55

Although the new year has barely begun, spammers are already
hard at work pumping junk in users mailboxes. Since the shopping season is over
and so is users’ budget, this week’s unsolicited messages are mostly focused on
selling sexual enhancements such as knock-off Viagra and Cialis.

This issue of the Spam Omelette will be a special one, since
the top five spam words for the past week are part of the same spam wave
impersonating legitimate newsletters.

This specific spam wave is notable in size and seems to
originate from computers infected with Trojan.Spammer.Tedroo, a malicious bot
that has been also used to send spam mentioning celebrity names. Spammers have
used a single e-mail template showing a centered image and labeled as
“Copyright (5 random digits) Inc. All rights reserved”. More than that, the
message headers have been tampered with in order to hide the true identity of
the sender.

Canadian Pharmacy Spam

The same medicine e-shop is also responsible for a second,
small-size spam wave featuring a slogan and a link to a Canadian Pharmacy
website clone. In order to avoid Bayesian spam filters, the message includes a
couple of lines of “junk” text (meaningless sentences that have no commercial
value, but add extra words to a suspiciously short message) taken from Leo
Tolstoy’s War and Peace.

Canadian Pharmacy Spam 2

About the author

Bogdan BOTEZATU

Bogdan Botezatu is living his second childhood at Bitdefender as senior e-threat analyst. When he is not documenting sophisticated strains of malware or writing removal tools, he teaches extreme sports such as surfing the web without protection or rodeo with wild Trojan horses. He believes that most things in life can be beat with strong heuristics and that antimalware research is like working for a secret agency: you need to stay focused at all times, but you get all the glory when you catch the bad guys.