ICSA Labs Blog: spam

Seeing ransomware before it strikes

Every day, there are articles in the news about Ransomware, but I’ll bet you don’t know just how prevalent this infectious menace has become.

At ICSA Labs, we’ve seen a tremendous spike in ransomware during the 2nd quarter of 2016.

Understanding the Samples Sources and Methodology Used in Advanced Threat Defense Testing

Samples Sources

A number of malicious sample sources feed into ICSA Labs’ Advanced Threat Defense (ATD) testing.

One source is the spam ICSA Labs collects. ICSA Labs collects hundreds of thousands of spam messages every day through its spam honeypots. Specific attention is paid to spam with attachments.  If the attachments are malicious, they are sample source candidates for ATD testing.

Mac Attacks: What n00bs are saying

A couple of days ago, I got this phish in email…

You can instantly tell it’s a phish by the fact that it is addressed to multiple recipients, but to my eyes, it is further proof of the changing situation for Macs. 

Hoofy, Boo, and the Great Firewall of China

Last month I mentioned the Great Firewall of China in a blog posting.  Apparently it was recently in the news covered by Hoofy and Boo as well.  What?  You’ve never heard of Hoofy and don’t know who Boo is either?  This 2 minute video will get you acquainted with them and tell you about their experiences with the Great Firewall of Ch

Why Russia’s Spam Levels Don’t Look More Like China’s

I recently wrote a blog entry called, “Whatever Happened to China” that suggests what may have led to a noticeable decrease in the spam ICSA Labs had been receiving from China at the end of 2009. I concluded that the amount of spam we collected from China fell just as the Chinese government began making the .cn domain name registration process more cumbersome.

Whatever Happened to China?

Two years ago, ICSA Labs began publishing the Top 10 nations where spam originates. The weekly published chart compares last week’s leading spam-sending nations to those from the previous week. An accompanying graph compares trends for some of the top spam-sending nations over the most recent 6 months.

Which Anti-Spam Product Should I Choose For Our Enterprise?

Everyone wants to receive less spam.  So when an organization is looking for the right anti-spam solution, decision makers like you are going to look for the most effective solution.  But how can you know which anti-spam solutions will do the best job possible while fitting into your environment?

The (malware) gift that keeps giving…

It’s pretty simple. If you are going to distribute any computer media to anyone, at anytime, it’s best to scan it with an ICSA Labs Certified Anti-Virus Product before you distribute it.  You can find a list of certified Anti-Virus products here.

Pick a holiday…any holiday

If there is a reason for celebration, a time to get together, a holiday or major news story,  expect the malware writers to take advantage of the technically disadvantaged by creating and distributing spam or malware with some reference or association to that event.  Let’s take the recent report in Infosecurity of hackers spreading fake anti-

On the Origin of Spam

So you received another spam e-mail message. On the surface it seems rather ordinary. It’s an advertisement for a handful of brand-name prescription drugs. When viewed from your e-mail client, you can tell that it’s clearly html -- having brightly colored text with an image above the text. The image, loaded automatically by your client, comes from some .com domain according to the e-mail’s html source code.