2010 in Review: Same Old Spammers

2010 has been an active year both for spammers and anti-spammers alike. No new spamming techniques or tricks were used in 2010. However, the spammers kept the spam threat alive and kicking by recycling old tricks and combining popular spamming techniques seen in the past. Here are some of the notable spam types and [...]

How Spammers Hide Behind Multiple Web Layers

Today, I received a spammed message that made it through my spam filters, thanks to a few clever tricks. Right off the bat, the message was only a short sentence with a shortened link. The sentence was written in Spanish so anti-spam filters might have had a harder time with it. That was the [...]

.RTF File Conceals Spam

A few days ago, TrendLabsSM engineers received spam containing salad words (see Figure 1) along with a .ZIP file attachment (see Figure 2). This mixture of random words can be seen in the subject header and in the spam body. This was purposely done by spammers to bypass anti-spam filters that users may already [...]

Spam Quarantine Notification = Spam

Spammers are clearly becoming more and more creative as they try new ways to bypass our anti-spam filters. Just recently, we received a spammed message disguised as a spam quarantine notification message from a competitor.

To the untrained eye, the email looks quite convincing. However, closer inspection of the message properties reveals that while the [...]

Phishing experiment sneaks through all anti-spam filters

A recently conducted ethical phishing (New study details the dynamics of successful phishing) experiment impersonating LinkedIn by mailing invitations coming from Bill Gates, has achieved a 100% success rate in bypassing the anti-spam filters it was tested against. The experiment emphasizes on how small-scale spear phishing campaigns are capable of bypassing anti-spam filters, and once [...]