Malware


Online Ad Site Hacked, Rigged to Serve Exploits

A
high-profile online advertising Web site has been hacked and rigged to
serve multiple exploits to Microsoft Windows users surfing the net with
unpatched third party desktop software.
According to a warning issued by Websense Security Labs, the malicious code was found on media-servers.net,
which is described as a high-profile advertiser on the Internet realm. 
The site has been firing an assortment of exploits for several months,
including exploits for vulnerabilities in Microsoft DirectShow and
Adobe PDF Reader.  Read the full advisory [websense.com]

Web Security Flaws Up 10% in 2009

Almost 80% of more than 3,000 software security flaws publicly reported
so far this year have been in Web technologies such as Web servers,
applications, plugins and Web browsers.
That number is about 10% higher than the number of flaws reported in
the same period last year — and nine out of 10 of the flaws were found
in commercial code. Read the full article. [Computerworld]

Google Reader Used in Koobface Attack

The attackers behind the insidious Koobface worm have taken to using Google Reader accounts that they control to spread the worm through shared Reader items. The infection method–which has been used before by Facebook worms–is another indication of the resilience and changing tactics the malware authors are employing.


Microsoft’s Computer Online Forensic Evidence Extractor (COFEE) has made it into the hands of pirates, and their virtual ships are distributing it. The COFEE application lets officers grab data from password-protected or encrypted sources. That means you can now break the law twice over: download the software and then use it to steal information from other people’s computers.

Guest editorial by Gunter OllmannBotnets come in all shapes and sizes and if you can’t find one that fits your unique purposes off-the-rack, it’s trivial to create a custom one using a do-it-yourself construction kit – which helps to explain the diversity we’re seeing within the enterprise. In general though, enterprise-targeted botnets tend to be a different breed – make use of enterprise-specific functionality (e.g. being proxy aware and exploiting vulnerabilities over the network that would be blocked by perimeter firewalls) – and their objectives tend to be more “refined” and clearly criminal.

The security industry lacks a uniform way to title botnets, and the
result is sometimes a long list of names for the same botnet that are
used by different antivirus vendors and that can be confusing to
customers. As it stands now, the infamous Conficker is also known as Downup, Downadup and Kido. The Srizbi botnet is also called Cbeplay and Exchanger. Kracken is also the botnet Bobax.

The latest MySpace attack tries to lure recipients into giving up their
MySpace credentials, and then attempts to trick victims into installing
password-stealing malicious software. Attackers began blasting out the junk e-mails early Monday, according to researchers at the University of Alabama, Birmingham, Researchers at the school so far have tracked more than 30 Web site names associated with this attack, each beginning with “accounts.myspace.com” and ending in a United Kingdom country code domain (.uk). Read the full article. [Washington Post] 

Arbor Networks researcher Jose Nazario has spotted a malicious Google AppEngine application being used to control a botnet of infected computers. The Google App Engine is feeding URLs to the zombies (hijacked machines) for them to download, Nazario explained.  Read the full blog post [arbornetworks.com]

The botnet problem has reached epidemic levels in recent months, with the continued growth of large-scale botnets, as well as the identification of smaller, more targeted networks around the world. But researchers have been taking steps to disrupt botnets of late, with some notable successes, as the recent takedown of the Mega-D botnet shows.