Tuesday, September 08, 2009

I Love You! I’m serious!!!

Which are the five most deadliest and commonly found viruses that can render your PC obsolecent? 4Ps B&M enlists the pests

The headline appears rather suggestive; it’s not! It’s one of the most deadly computer viruses that have affected the maximum number of PCs till date. [Indeed, the love bug managed to bite well!] Moving away from all expressions and phrases of emotions, let’s talk about something more practically disturbing. When was the last time you downloaded a file from the internet and discovered to your irritation that sometime later, your anti-virus has started bothering you with quarantine warnings? Worse, when was the last time you had to completely reformat your hard drive, made corrupt by the annoying viruses floating around? Annoying? Yes! They pushed you over the edge and made your laptop look like a piano that had forgotten what tunes mean, or some typewriter that your grandpa used some six decades ago, and had suddenly turned illiterate! Yes, blame it on those non-biological program codes floating around which we grandly term ‘viruses’! It’s also true that with every successful step of new breakthrough in the world of anti-virus programming, another deadly virus is born; another hacker; another purpose; another bunch of annoyed victims.

Here are the five most such program codes that are causing much anxiety in the world of PCs. [Go ahead, choose your enemy!]

PEST #1: Conficker

Disabling of Windows services such as Automatic Updates, Background Intelligent Transfer Service (BITS), Windows Defender and Windows Error Reporting, websites related to antivirus software or the Windows Update service becoming inaccessible, user accounts getting locked out et al – that’s precisely what this most devastating virus in recent times, Conficker can do. But this is just the trailer...

Conficker has till date, infected anywhere between 9 to 15 million Microsoft Server Systems running everything from Windows 2000 to Windows 7 Beta. The French Navy, UK Ministry of Defence (including Royal Navy warships and submarines), Sheffield Hospital network, German Bundeswehr and Norwegian Police are some of the high profile victims! [What a clientele!] Microsoft set a bounty of US $250,000 for information leading to the capture of the worm’s author(s).

It’s also known as Downup, Downadup and Kido. It’s available in five different variants – A, B, C, D and E. The initial variant was discovered in early November 2008 and since then 4 others have been identified till December last year. The variants A, B, C and E exploit a loophole in the Windows server services to cause a buffer overflow in which the worm is downloaded in DLL form over the network and then connects to files like svchost.exe, services.exe or Windows Explorer process. The worm pushes and pulls executable payloads over the network, which are then used by the worm to update itself to newer variants, and to install additional malware. It really is today’s PEST #1!

For more articles, Click on IIPM Article.

Source : IIPM Editorial, 2009

An Initiative of IIPM, Malay Chaudhuri and Arindam chaudhuri (Renowned Management Guru and Economist).

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