Thursday, 10 November 2016

Different types of Virus

File Virus:This variety of virus usually infects program files like .exe, .com, .bat. Once this virus stays in memory it tries to infect all programs that load on to memory.

Macro Virus:
These variety of virus infects word, excel, PowerPoint, access and alternative knowledge files. Once infected repairing of those files is extremely abundant troublesome.

Master boot record files:
MBR viruses are memory-resident viruses and duplicate itself to the primary sector of a memory device that is employed for partition tables or OS loading programs. A MBR virus can infect this specific space of memory device rather than traditional files. the simplest thanks to take away a MBR virus is to scrub the MBR space,

Boot sector virus:
Boot sector virus infects the boot sector of a HDD or FDD. These also are memory resident in nature. As presently because the pc starts it gets infected from the boot sector.
Cleaning this kind of virus is extremely tough.

Multipartite virus:
A hybrid of Boot and Program/file viruses. They infect program files and once the infected program is dead, these viruses infect the boot record. after you boot the pc next time the virus from the boot record hundreds in memory then begin infecting alternative program files on disk

Polymorphic viruses:
A plague that may cipher its code in several ways that in order that it seems otherwise in every infection. These viruses are harder to sight.

Stealth viruses:
These styles of viruses use totally different reasonably techniques to avoid detection. They either send the disk head to scan another sector rather than the one within which they reside or they will alter the reading of the infected file’s size shown within the directory listing. for instance, the Whale virus adds 9216 bytes to associate infected file; then the virus subtracts constant range of bytes (9216) from the scale given within the directory.

Trojans:
A computer program isn't a plague. it's a damaging program that appears as a real application. in contrast to viruses, Trojan horses don't replicate themselves however they will be even as damaging. Trojans conjointly open a backdoor entry to your laptop which provides malicious users/programs access to your system, permitting confidential and private info to be thieving.


Adware:
Generically adware may be a software package application within which advertising banners are displayed whereas any program is running. Adware will mechanically get downloaded to your system whereas browsing any web site and might be viewed through pop-up windows or through a bar that seems on a visual display unit mechanically. Adwares are employed by corporations for selling purpose.

Spywares:
Spyware may be a variety of program that's put in with or while not your permission on your personal computers to gather info concerning users, their laptop or browsing habits tracks every and everything that you simply do while not your information and send it to remote user. It can also transfer alternative malicious programs from net and install it on the pc. Spyware works like adware however is typically a separate program that's put in inadvertently after you install another software sort program or application.

Spam: Spamming may be a methodology of flooding the net with copies of constant message. Most spams are industrial advertisements that are sent as associate unwanted email to users. Spams also are called Electronic junk mails or junk newsgroup postings. These spam mails are terribly annoying because it keeps coming back a day and keeps your mailbox full.

Tracking cookies:
A cookie may be a plain document that's keep on your laptop in an exceedingly cookies folder and it stores knowledge concerning your browsing session. Cookies are employed by several websites to trace visitant info A chase cookie may be a cookie that keeps tracks of all of your browsing info and this can be employed by hackers and firms to understand all of your personal details like checking account details, your master card info etc. that is dangerous .

Misleading applications:
Dishonorable applications misguide you concerning the safety standing of your laptop and shows you that your laptop is infected by some malware and you have got to transfer the tool to get rid of the threat. As you transfer the tool it shows some threats in your laptop and to get rid of it you have got to shop for the merchandise that it asks some personal info like master card info etc. that is dangerous.

By: Carl Marx
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