Malware infection is very easy through the Pen drive when compared to the infection from a CD. Flash drive, the commonly called Pen drive is a small sized hard disk ranging from 2GB to 64 GB memory size. It is very convenient to carry the computer data in a pen drive so most of us use this device. Unlike CD, virus infection occurs at the moment when we insert the infected Pen drive into the USB port. Virus infection from a CD takes place only when we open or copy the infected files. So we get time to see whether there is any infected file or not. Some new generation malwares first get into the C-drive and from there, spreads the infections to other drives like D, E etc. So if this occurs, we have to format all the drives and the files will be removed permanently.
Antivirus programmes like K7 has Pen drive immunization facility so that we can immunize the pen drive to prevent the entry of virus from an infected computer. Like Pen drive, the SD card, MicroSD TF cards etc are also susceptible to virus attack.
Computer Virus is a program that infects some executable software of the computer and causes that software, when run, to spread the virus to other executable software. The virus may also contain a payload which performs other actions, often malicious. A Computer worm is the program which actively transmits itself over a network to infect other computers. It too may carry a payload. The difference between the Virus and Worm is that the virus requires user intervention to spread, whereas a worm spreads automatically. Infections transmitted by email or Microsoft Word documents, which depends on the recipient opening a file or email to infect the system, can be called as viruses rather than worms.
The first network-borne infectious programs, originated in multitasking Unix systems. The first well-known worm was the Internet Worm of 1988, which infected SunOS and VAX BSD systems. It exploited the security holes in the network server programs and started itself running as a separate process.
Some common Computer malwares are Trogen, Rootkit,Backdoor,Botnet,Non resident virus, Resident virus, BanCos,Gator,LegMir,Qhost, Multipartite virus etc. Commom Mobile phone virus are SpaSMS, Spim, Cabir, Duts, Skulls, Common Warrior etc.
Let us see these dangerous programmes and the methods of virus prevention
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