Trend Micro, a Tokyo-based security enterprise with over 4,000 employees in more than 30 countries, has recently asked the experts from TrendLabs (its global research organization) to make an updated list of the worst computer plagues ever. The resulting list includes 5 noteworthy examples of widespread infections which represented, during their respective period of wider circulation, the most dangerous security threats users and companies could have faced.
More than a week after the 1st of April, the day when the Internet stood still because according to the press the Conficker/Downup/Downadup/Kido worm could have destroyed the net, the infrastructures, civilized mankind and the entire planet things are going more or less as usual: Internet remains a dangerous place but it hasn’t exploded like a supernova, and bits are flowing quickly from a part to another one of the planet. The true novelty is that the botnet built up by one of the most complex malware ever finally shows what its true purpose is.
Since, in 2005, the nasty commercial policies of Sony BMG uncovered the possibility to seize control on the operating system to hinder the normal working of the PC and peripherals, the evolution of rootkit software went through an unparalleled acceleration. The interest for the matter rose in research and among cyber-criminals gangs, with the result that can be esteemed in these days: rootkits have reached the lowest levels of electronic devices circuitry by infecting network routers, the BIOS and even the most privileged working mode of the x86 processors.
Conficker/Downup/Downadup/Kido malware, Symantec writes in the first edition of The Downadup Codex, “is, to date, one of the most complex worms in the history of malicious code“. At first spread through a flaw within the Windows Server service, the threat has grown immensely because of a combination of elements that facilitated its diffusion and drove the IT industry to unite in the attempt to block its further proliferation.
Conficker (also known as Downup, Downadup or Kido) is the worm that first, after the Sasser outbreak in 2004, was able to exploit a flaw in a Windows remote service, and due to this unusual ability the malware became in turn the target of a large part of the IT industry that, leaded by Microsoft, is trying in these days to defuse the time bomb of an enormous botnet yet with unknown practical outcomes.
The numbers clearly demonstrate it, nowadays the main threats to computer security are those coming from worms, trojans, backdoors, malicious code categories that have nothing to do with the historical “viruses”. But those digital parasites which travelled from file to file (and from floppy to floppy), hunting for new habitats and new victims to infect still survive today when malware is a business and the worm-based botnets have a scary amount of zombie-PC to use against institutions, firms or the network infrastructures of entire nations.
The Conficker worm, also known as Downup, Downadup or Kido, is floating around since October 2008. Security firms know it pretty well, and in the past days the malware has become known as much well to users too having infected a significant amount of machines all over the world. We have returned to the “good” old times of Sasser, Blaster and Mydoom outbreaks, and the already worrisome proliferation of the worm threatens to get even worse because of some conditions that increasingly support its spreading.
From a computer security standpoint, 2008 surely has been a year of passion. Nay worse, it has been a dramatic year characterized by figures beyond any imagination, a steady hammering of new threats that has lasted till the end and that is expected to be the same or even worse during this year.
Trend Micro security enterprise has ranked the attack vectors exploited by the 100 most widespread malware from January to November 2008, and the results speak by themselves: among all the possible infection ways Internet is absolutely the most used (or better still abused) one by worms, trojans and other types of digital pathogenetic agents constantly hunting for victims and unprotected systems to compromise.