Malware

The one subset of malware which does not immediately seem motivated by financial incentives is the autorun worm. In fact the raison d’etre for this class of malware seems lodged in the annals of yesteryear; summarised in three words it could be “naive script-kiddy kudos”. Unlike the propagators of other classes of malware, ie professional criminals, the writers of autorun worms are amateurish upstarts. Ample evidence for this assertion may be found in a recent sample of Sohana, a family of autorun worms, which was cloaked in three layers of known virus infections: the ancient W32/Flcss over W32/Scribble-B over W32/Impair-A. ...

Activities associated with Koobface have increased during the month of December. Often it is for the sending of traffic to compromised servers in order to obtain more servers. Other times the activity centers around using those same compromised servers to proxy users to malicious domains that are then used for further distribution of malware or command and control of the infected machines. I noticed a trend with some of the domain-based locations making use of the holiday theme. This has included everything from “presents for your pets” to “festive holiday trees” – these are domains that appear legitimate but are not. In fact, many of the domains that are being used were legitimate at one point and now are serving a different, more questionable purpose. ...

Well, it didn’t take long for the Christmas E-Card scams to start. Recently we have seen email messages pretending to be from Hallmark, suggesting that you have received an E-card from a friend. The complete email message looks like this:You have recieved a Hallmark E-Card from your friend. To see it, check the link below: http://www.hallmark.com/webapp/wcs/stores/Occasion/ChristmasE-CardsThere’s something special about that E-Card feeling. We invite you to make a friend’s day and send one.Hope to see you soon, Your friends at Hallmark ...

Those looking to see the latest 3D blockbuster movie, The Avatar, on the cheap will have to take great care in what they search for. We have become aware of at least one site that has been rigged to redirect users to a page that presents the now-familiar “play video/need codec” screen. In an unusual twist, this time it is offering a new ActiveX update rather than the usual codec or Flash player updates. ...

Data Doctor 2010, an encryption trojan via our old “friends” iframedollars. It encrypts the files on your hard drive very rapidly if you’re unfortunate enough to be victimized by it. It arrives through drive by downloads from malicious web sites. It’s also packaged with other malware. The victim receives a message that the system is shutting down due to “Unrecognized disk driver command.” His system is then re-booted to safe mode and a message is displayed: “Windows has recovered from a serious error. Some files can be corrupted. Disk checking is strongly recommended.” ...

Earlier on this morning I happened to notice a redirect page used in a meds spam campaign that just happened to also be compromised with a malicious script. You can see the META tag redirect that will instruct the browser to immediately load the page on the target site. And immediately below, it, the obfuscated JavaScript injected into the page. Deobfuscating this script, we can see its payload is also redirection, this time to a malware site. ...

Don’t go there. There are a lot of rogue downloaders hiding in those links. Yahoo CEO Carol Bartz, speaking at the UBS Media and Communications Conference in New York, said the Tiger Woods sex scandal was a better traffic generator than the death of Michael Jackson, according to the ZDNet blog.

The third generation of WiniGuard gets a new clone every 48 hours A new rogue security product called IGuardPC, is the 50th clone of the WiniGuard family of rogue security products. That makes WiniGuard the largest rogue family ever. The WiniGuard family began in September of 2008. Operators behind it have added variants that has sorted into three generations. The latest generation gets a new clone about every 48 hours to stay ahead of public awareness and anti-malware detections. ...

Case in point: findproper[dot]org These are the types of sites that are used to download from third party affiliate sites. If the setup.exe had run, it would have installed the AntiMalware rogue.

What’s the best way to distract an online gamer while you drop some undesirable files onto their system? We saw what’s probably a pretty effective method today in Troj/Lneage-A. This particular Trojan leaves the user viewing a slideshow of topless elves while it drops a file designed to steal their gaming info. Given that the vast majority of MMORPG’ers are male, and bless them they’re often a little bit lonely, dazzling them with a variety of images of well endowed half naked elves (I think they’ve had some work done to be honest) should be enough to keep them entertained while the malware authors do whatever they fancy in the background. ...

Following on from the latest Captcha techniques used by the W32/Koobface worm, it seems that the malware authors have turned to Santa for help to deliver it’s nasty surprise which awaits Facebook users. The infection drops other trojans such as FakeAlert and leaves the user renderless. It all begins with a post on a user’s Facebook Wall. If the user clicks on the link, they are presented with a fake video player with a Christmas greeting as shown below ...

The SecurityTool rogue security product, which first turned up early in October, is still active and trying to avoid countermeasures by setting up 12-24 download sites per day. It comes in two flavors online scanner scam: and fake codec scam: For more information Click Here.

This is a new one: bribeware. They’ll pay you a dollar to install their product. Nice idea, but unfortunately in this case it comes bundled with malware. We detect it as C4DLMedia, a group of installers that include adware and agents that change browser home pages. It’s considered a “moderate” risk. I wonder if Microsoft considered this for VISTA. C4DL Media might have a marketing problem with the dollar bribe though. In places where a dollar is worth enough to make this worth the effort there probably isn’t any Internet connectivity.

Conficker (also known as Downadup) has dominated security headlines for months. Today — April 1, 2009 — media coverage peaks because variant Conficker.C is programmed to check a larger set of domain names for update instructions. The worm has not melted the internet overnight, but the attention is useful if it pushes lagging patches out the door. Defense is mostly discipline, not mystery. How It Spreads Conficker exploits failures administrators have warned about for years: ...

It’s not possible to emphasise enough the importance of using sensible passwords on your network. Not just on the areas of your network that you don’t want your users to traipse through, but also on the default network shares that are present on installations of commonly used operating systems. The Windows versions Conficker targeted — NT, 2000, XP, and 2003 — are all end of life and no longer receive security updates. The lesson still applies to any machine with open shares today. ...