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why the hell virus is developed!!!!!!

 
jyothsna kumari
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hi all,
Here is the sad story of our company.....
our company was hit by a virus and for the past 3 days we are completly cut off from the outside world.The whole network was currupted and Microsoft Outlook was hacked and what not.....
Really i want to know why these virus are developed and what is the fun of this.
Jyothsna
 
R K Singh
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AW doom virus writer has prize on his head of $2,50,000
 
Michael Ernest
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Netbeans IDE VI Editor
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Moving this to General Computing.
 
himanshu patel
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If virus was not developed, how could one make software more and more robust.Many company purposly hires hacker to crack their software so that they can know how to improve it.Just imagine,if there was no virus, how secure Microsoft product would have been today?
It is a creation of some devil mind who like to destory system than to improve it.Writing virus requires a very good knowledge of all side of systems like language,scripting,Operating system, hardware,network etc.
Now a days teen agers involving in writing virus.
I also heard that some anti-virus software company purposly introduce
virus and then later its solution so that they can keep growing their
business.Do not know to what extend it true.I always wonder, how could
anti-software virus vendor release the solution in a matter of hours?
How could they know about virus so easily?
 
Jeroen Wenting
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I severely doubt AV companies are releasing virusses themselves in order to generate a market.
Any that did would, when found out, become the target of so many lawsuits (both civil and criminal) that they'd quickly be forced out of business (and forced to pay massive amounts in damages).
There's basically several categories of virus writers:
1) script kiddies
2) people who have a score to settle with someone
3) organised crime/terrorism
4) military forces
1) are pretty harmless. They typically use tools that generate virusses based on fixed templates with some custom settings.
They're the cause of all the dozens of variants of the same email virusses that keep appearing (and in the past others as well)
2) the vast majority. Former employees out to harm their old company, Linux fanatics wanting to hurt Microsoft or SCO, you name it.
3) there's growing evidence of email virusses (and especially trojans) being created and spread by criminal groups to harves personal information for use in identity theft and creditcard fraud. In at least one case a group of professional spammers is known to have paid for a virus to be spread that harvested email addresses and sent them over for creating spamlists.
4) estimated to have started in the USSR and Bulgaria in the 1970s or 1980s, virusses can were written designed to shut down foreign computer networks in times of war (if infection can be achieved to a high enough level). Usually these are specifically targeted and do little harm to the general population, but with the advent of the internet it has become possible to launch massive DDOS attacks against military networks using unsuspecting intermediaries around the world, a target too good to pass up on. It is believed that terrorist cells and NATO military and intel organisations have an electronic warfare capability to selectively attack networks belonging to hostile nations/organisations when deemed necessary using trojans and virusses.
1) they do it for the kick of notoriety in their peer groups. They often get scared off when their creations have a large impact.
2) financial gains or pure spite.
3) financial gains, either directly or indirectly through use of stolen data
4) military advantage by shutting down enemy command and control networks and communications. For terrorists add to this panic and fear resulting from people feeling the intrustion into their homes.
The very first programs we now call virusses were actually created as gimmicks by sysadmins who didn't want to update many systems in their network by hand and created programs that piggybacked on the original install with the purpose to periodically check and update that larger program.
Things started getting out of hand when these programs started getting out on ARPAnet...
According to legend at one time programmers created a series of two such which would check each other several times per second with the purpose of restarting the other if it was dead.
This was then ran at the core system of the OS vendor (using a security hole to get in) in order to prove to the vendor the seriousness of said hole.
 
Maarten Vergouwen
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Interesting read Jeroen.
I'd add that the most dangerous aspect of a virus is its social engineering model; look no further than the ILoveYou virus as an example.
Seldom have I seen such a simplistic, badly designed, badly written piece of programming, yet it was highly succesful.
If it had been called the "Get Viagra Now!AASDD!#F@#" it would not nearly have had the same impact.
 
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