W32.Sobig.F

It is a mass mailing worn that infects hosts computer with innocuously named e-mail attachments such as application.pif and thank_you.pif .When activated, this worm transmitted itself to e-mail addresses discovered on a host of local file types. The end result was massive amounts of Internet traffic. Upon execution, this worm drops a copy of itself in the Windows folder as WINPPR32.EXE. It also drops a non-malicious text file, WINSTT32.DAT, in...

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Most Dangerous Threats

These are some of the most dangerous threats:  NIMDA: Shortly after the September 11 tragedy this computer virus infected hundreds of thousands of computers worldwide. Nimda was considered to be one of the most complicated viruses, having up to 5 different methods of infecting computers systems and duplicating itself. It was started in 2001. SAPPHIRE: SQL Slammer, also known as Sapphire, was launched on January 25, 2003. It was a doozy of...

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Trojan Remover

Trojan or trojan horse is software that appears to perform a desirable function for the user prior to run or install, but (perhaps in addition to the expected function) steals information or harms the system. Once a Trojan horse has been installed on a target computer system, a hacker may have access to the computer remotely and perform various operations, limited by user privileges on the target computer system and the design of the Trojan horse. ...

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Denial Of Service Attack

It is is an attempt to make a computer resource unavailable to its intended users by remote users. This is one of the Botnet Attacks. It generally consists of the concerted efforts of a person or people to prevent an Internet site or service from functioning efficiently or at all, temporarily or indefinitely. Creators who use make or program this attack will target sites or services hosted on high-profile web servers such as banks, credit card...

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Types of Botnet Attacks

Bot net is a like a robot that sends some codes to remote user as requested by him. It first scans the computer or network for different vulnerabilities and it will use different types of attack . And we have seen what Denial-of-service attacks where multiple systems autonomously access a single Internet system or service in a way that appears legitimate, but much more frequently than normal use and cause the system to become busy. Adware exists...

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