TechBlog

My friends often ask me about steps they can take to keep their systems at work and home free from malware. Apart from the usual recommendation to use alternative, less targeted and therefore slightly more secure operating system like Linux or OSX (OpenBSD would also be an interesting alternative) I used to mention that a change of the web browser would also be very helpful. Internet Explorer is still the most commonly used browser with a little above 60% market share, but its market share is steadily in decline in the last couple of years. I am fairly sure that one of the main reasons people move to Firefox or Chrome is perceived lack of security. Internet Explorer is the most common target for malware and various exploit packs although the latest versions have proved to be much more resilient to various attacks. With most of the users finally making the switch away from IE6 we hope that the exploits will be even less successful in the future. This of course means that attackers are changing their focus to other products like Adobe Reader of Flash, the most commonly used internet applications after browsers. Exploiting Flash or Adobe Reader allows the attacker to abstract the browser version and often the browser itself. Adobe’s attitude to security also does not help. ...

On Friday evening I was talking to a North American customer who had been fighting with infections caused by SEO poisoning. They mentioned a particular search term that could generate new samples of FakeAVs. The funny thing was that the website hacked by the SEO poisoner was a blog of someone trying to promote legitimate business use of SEO technologies.. If you click on any of the links returned by the search you would be redirected to an Indian site containing this image: ...

We all know Brazilian hackers have mastered the art of creating banking trojans. The Chinese are very fond of password stealers targeting online games. The bad guys do have preferences for what type of malware they are creating based on their geolocation. Well, I found this exploit source code from a domain named kuwait{removed}.com The exploit downloads a file named unek.exe, very well known to be an IRC bot. ...

Somebody is trying to pose as F-Secure. If you see an email like the one below, just ignore it: Before you ask: No, we’ve never heard of “F-Secure HTK4S anti-virus” either.

New comScore data shows that Facebook and Twitter use has skyrocketed on mobile devices over the past year, and that on-the-go MySpace use is now on the decline, according to MediaPost. Here are the numbers: Facebook now sees 25.1 million mobile users as of January 2010, which is more than double the January 2009 total. Twitter grew to 4.7 million during the same period, which is four times the year-ago total, the report said. ...

After the Spring theme pack Microsoft has released a beautiful Life theme. It consists of five beautiful Discovery channel wallpapers based on wild life and nature. This is a official theme and can be applied just by double clicking on the theme file. Download: Life Theme pack for Windows 7

Recently, We received some malicious files which appeared to be signed by “Adobe Systems Incorporated”. On closer inspection, however, it was seen that the signature was just a ruse used by the malware author to give an air of legitimacy to the files. Virus writers are getting smarter and going that extra mile to digitally sign their files. Using this technique the malware authors could, for example, penetrate an environment where only signed files are allowed but the authenticity of the signature is not checked. ...

Just when we thought SEO using Flash was as interesting as SEO poisoning can get, it seems it’s getting even sneakier… Imagine a PDF file posted by someone evil online. Of course, Google being Google, the file is recognized as a PDF. And when we open it, it really is a PDF. No evil codes inside, just a good old vanilla PDF file. Three hours later… Google still says the file is a PDF. Brod (one of our geeky guys here) is attributing this to Google’s cache. ...

Microsoft has issued an advance notification for Patch Tuesday next week. The company said it expects to issue two patches, one for Windows and one for Office. Both are intended to patch vulnerabilities that could allow remote code execution and both are rated “important.” Microsoft Security Bulletin Advance Notification for March 2010 here.

This morning while I was enjoying my coffee I received an event notification for my personal Facebook account. It was for a group called “See Who’s Spying On Your Profile – GET NOTIFIED -”. and “See Everyone Who Views Your Profile”. Immediately, my security hat went on and I started to investigate. At first glace, they are both pyramid schemes. In both, you become a fan, then you have to suggest the page to 50 of your friends to move onto the next stage. From there the tactics diverge slightly. In the first one, you need to take a marketing quiz that asks for all sorts of personal info, and you need to put in your Facebook username and password, so they can “monitor” your profile. AND you have to provide them with your mobile number. Now wait a minute… why would they need my mobile number? ...