Nuwar for Valentine’s Day

It shouldn’t be a surprise to anyone that the Nuwar gang has released a new version of their social engineering scam for Valentine’s Day; they are just a bit early. The gang has started again sending spam messages with subjects related to love.  The body of the e-mails contains a short message and a link

Nuwar Phishing

There was another twist today in the Nuwar story:  it is now being used to host phishing sites.  The gang behind this prolific malware has registered several  domain names similar those used by well-known banks such as Barclays and Halifax and is directing web requests for these misspelled domain names to computers infected with Nuwar. 

More Nuwar for the New Year

The gang behind the Nuwar threat (also called Storm Worm or Zhelatin) has been very active during the holidays.  They have been sending numerous waves of spam in an attempt to infect as many users as possible. The gang is taking advantage of the fact that a lot of researchers are taking some time off

Beware of Imposters

There seems to be a common belief that malware only lands on a computer through e-mails. This is far from being the case. Our ThreatSense statistics shows that a lot of Internet users fall for social engineering on web pages and are tricked into installing fake programs. As David Harley pointed out on his blog

New Nuwar for Christmas

At midnight GMT time, we started receiving reports of a new wave of Nuwar e-mails.  The e-mails contain the following text trying to convince a user into visiting a malicious website:     This Christmas, we want to show you something you will really enjoy. This might not be fun for the whole family, but


PLEEEEASE Infect me   This is what Windows says when you install it. You see, there is a default setting called “autorun” that will automatically run a program when you insert a CD or DVD or thumb drive into your computer. The idea is that you put the media in there to run a program,

Good Bye Seoul!

This year’s Association of Antivirus Asia Research (AVAR) conference was held in Seoul, Korea.  The conference ended this evening after two days of presentations and discussions.   The conference was a good opportunity to learn more about specific threats targeting Asia.  We learned that online game information stealing is prevalent in this part of the

PaChat Targeted Attack in Canada

At the end of last week, we were made aware of a new targeted attack. The social engineering strategy and malware construction caught our attention because of its sophistication.  The threat came as an e-mail addressed to a director at a company based in Canada.  The e-mail was addressed with the full name, street address

Bot Stories

Computer experts are familiar with the .com file type. The .com extension is often used by binary program files under MS-DOS. Why is this important? Because anything that has the ‘.com’ extension on a windows system is considered as an executable file and is executed when a user doubles click on it. The same is

What’s a redirect and why is it bad?

  A redirect is a way to take a web surfer to another site. Redirection is very useful when done right. Instead of getting an error message that the page cannot be found you can be redirected to a page that helps you find what you are looking for. At ESET we use redirects properly.

Safe Halloween!

Today, we are celebrating Halloween and malware authors want to be part of the fun.  They love to disguise and they love zombies even more.  To celebrate Halloween, the operators of the Storm Worm have launched a new e-mail campaign to attract users to their malicious pages and infect their systems with the latest variant

Don’t Get Burned Twice

The current fires in Southern California are causing misery to hundreds of thousands of people. ESET LLC calls San Diego home and is acutely aware of the impact this is having on people’s lives. Not only is ESET providing assistance to employees impacted by the fire, but some employees are volunteering their time and money

Nuwar Traffic Analysis

  Nuwar, also known as the Storm Worm, is a very popular threat in the antivirus industry this year.  This threat has attracted a lot of attention because of its sophistication and the strenuous efforts made by its authors to maintain a strong botnet.   The botherders who operate the Nuwar botnet control infected PCs

Virus Bulletin 2007

The antivirus industry sometimes has a reputation of being secretive or even aggressive to newcomers.  Only a small visit at the Virus Bulletin conference that is being held in Vienna this year is all it takes to convince anyone of the opposite.  It is impressive to see how much information is exchanged during the three

Virus Bulletin – Vienna

Quite a while ago I posted a blog titled “The Spirit of Cooperation” in which I spoke of the AVAR conference. Today I write from the Virus Bulletin conference. It could be my last blog if my boss finds out I’m writing a blog while he’s addressing us in a session at the conference

Beta Test This!

Well, I said I wasn’t going to post each time the storm gang changes their tactics, however, perhaps I can use many of their ploys to teach anti-scam education.   The scum-scam du jour is an email asking you to beta test some software. One I saw went as follows:   ———————————————————————————————— Would you consider

Wow, a bulletproof vest!

Our heuristics have gotten pretty well tuned to the varieties of storm worms we’re seeing. We generally catch the new variants, but nobody is catching them all without incurring a significant false positive rate. There are probably some companies that would take issue, but when you block everything, including good, that counts as false positives

Is Everyone Really Bad?

Most of us were taught that most people are good and only a few are bad. This truism has carried over to computers where it is not applicable, especially in the case of email. It isn’t that there are more bad computer users than good ones though. Here’s how it works. If you have 100

Honor Among Thieves

Yesterday, we were shooting a report for a television network in Canada.  Part of the report concerns the underground economy.  We decided to connect to an Internet Relay Chat (IRC)  server to see how much stolen credit card data is sold.  While looking at the never ending flow of people announcing their PayPal, egold and

Yahoo Messenger Vulnerability

Vulnerability in Yahoo Messenger that can potentially allow a remote attacker to hijack your PC is you accept a webcam invite. Of course, your friends are not going to exploit the flaw when they invite you to a video chat. The threat is when you get invites from untrusted sources. The obvious advice is to

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