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VIRUS ALERTS

CryptoLocker is a ransomware program that was released in the beginning of September 2013 that targets all versions of Windows including Windows XP, Windows Vista, Windows 7, and Windows 8. This ransomware will encrypt certain files using a mixture of RSA & AES encryption. When it has finished encrypting your files, it will display a CryptoLocker payment program that prompts you to send a ransom of either $100 or $300 in order to decrypt the files. This screen will also display a timer stating that you have 72 hours, or 4 days, to pay the ransom or it will delete your encryption key and you will not have any way to decrypt your files. This ransom must be paid using MoneyPak vouchers or Bitcoins. Once you send the payment and it is verified, the program will decrypt the files that it encrypted

 

Storm: This dreaded name Storm-worm brings back the memory of one of the most menacing virus attacks in the recent past. This Trojan-horse debuted in 2006 and spread across the internet world through the e-mails containing some eye-catchy headlines that read230 dead as storm batters Europe. It cleverly tricked the users to click on it and get trappedas the worm disguised itself as everything that is possible from video, audio files to greeting cards. The main aim was to create a botent by which someone sitting in a remote place can access the infected computer for nefarious purposes and the virus succeeded in it.

 

Klez is a computer virus that refuses to die down and it is still persistent even after more than ten years when it first turned up. Klez came into existence in 2001 and it began infecting computers through email messages. The most common variant of Klez, Klez-H would work as follows first it would spoof email addresses by randomly picking one and then would install, copy itself and send it to every contact present in the infected system address book. Due to spoofing it puts a name from the contact in the “From” address making the tracking of the sender and infected computer both a very difficult task

 

Nimda is infamous for being the most malicious virus of its time, according to many reports the virus went from being nowhere to become the most common virus in 22 minutes. It got its name from the word ADMIN written in reverse and this worm spread with a fierceness never seen before. Nimda didn’t leave any method to target the user’s emails, server vulnerabilities, network shares and web sites it used everything that is present in the book. Its main aim was to slowdown the internet traffic by attacking the most used internet servers. It was released the days following the 9/11 attacks on September 18th forcing many to believe that this was a cyber attack, it didn’t live up to the hype but it did bring to a crawl the internet.

The Melissa virus was written by a man named David L. Smith in the year 1999, mix the thrill of a stripper in a bar with the coding genius of a hacker and you will have the first successful email-aware virus that is considered as the most destructive of all time. When Smith wrote this to impress the stripper he met in Florida little did he knew about the havoc it would wreck. It tempts the user to open a document with a message like “Here is that document you asked for, don’t show it to anybody else”. When opened it would self replicate and would send itself to the top 50 contacts in the computer, this virus was the first that could spread without any action on the user’s part. The estimated damage was $80 million but Smith was later caught by the FBI and was fined $5000 and was sentenced to 20 months imprisonment.

 

Code Red: The Code Red worm popped up in the summer of 2001 and taking advantage of the flaws in the Windows 2000 and Windows NT computers the Code Red started attacking them once it was unleashed on July 13th. It sneaked into the Microsoft internet information server and infected more than 350000 computers. This virus caught the anti-virus expert’s off-guard because it was able to re-infect cleaned systems again. This worm could create a backdoor for the system making the host vulnerable for outside attacks and also initiated a DDoS (distributed denial of service) and brought down many websites. The Code Red virus amounted for a damage of approximately $2.6 billion but the most memorable of all was the way it brought down the Whitehouse web server whitehouse.gov.

Conflicker: With a funny sounding name Conficker a new virus sneaked into the computers of the world in the March of 2009. This virus attacked the Windows based PC’s without any intervention of the humans and successfully affected over 15million PC’s using a patched Windows flaw. This virus is highly capable of creating a plethora of botnet army that could control the computers remotely and steal important financial data and other private details. Its complexity and mysterious nature made life miserable for security experts who called it “Super Bug” and “Super Worm”. This virus is hard to detect unless the PC is running an original version of anti-viru
 

 

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