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Virus Types
Boot Sector: A Boot Sector Virus infects the System area of a floppy or hard drive. They attach to the DOS boot sector on diskettes or the Master Boot Record on hard disks. They are activated when a user boots from an infected disk.
Virus Hoax: Be aware of these type of virus hoax. A virus hoax is a false warning about a computer virus. Typically, the warning arrives in an e-mail note or is distributed through a note in a company's internal network. These notes are usually forwarded using distribution lists and they will typically suggest that the recipient forward the note to other distribution lists. If you get a message about a new virus, you can check it out by going to one of the leading Web sites that keep up with viruses and virus hoaxes. If someone sends you a note about a virus that you learn is a virus hoax, reply to the sender that the virus warning is a hoax.
File Infector Viruses: Most of these viruses reside in the memory of a computer and infect programs' .exe and .com files.
Master Boot Record
Viruses: Similar to a Boot Sector
viruses, these viruses infect the Master Boot
Record and prevent your system from booting.
Multi-partite
viruses: Infect both the Boot
record and program files.
Macro viruses:
Macro
Viruses are prevalent in corporate environments
where office suites are used. They use a
program's code to infect data files.
Other Malicious Codes
Trojan Horses: These viruses do not replicate themselves. Instead, they often pose as a harmless file that is downloaded from the web. A Trojan horse is a program in which malicious or harmful code is contained inside apparently harmless programming or data in such a way that it can get control of your computer, and do its damage as programed to do, such as ruining the file allocation table (FAT) on your hard disk. These programs can result in the theft or destruction of data files. This type of virus is commonly picked up from peer to peer file sharing programs, such as music sharing programs. Scan your system frequently with your Antivirus software to make sure your system is clean. Don't have one? Check out our "Free Shareware" page, and get one.
Worms:
Worms replicate themselves without using
a host file and can spread very quickly across
the internet. A computer worm is a self-replicating virus that does not alter files but resides in active memory and duplicates itself. Worms use parts of an operating system that are automatic and usually invisible to the user. It is common for worms to be noticed only when their uncontrolled replication consumes system resources, slowing or halting your computer.
For professional
virus removal help, contact us, we are available 24/7. |
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Security
Trojans are one way a hacker can get into your
system, but there are other ways a hacker can
gain access to your critical system files. A
good firewall can help minimize that risk.
Although firewall software is good, it's better
to have a hardware barrier, such as a router,
between your internal network and the internet.
The internet community will only see the
router's IP address, not the computer within
your LAN.
ZoneAlarm
is a good free firewall from Zone labs. Or you can upgrade to a full protection package free for one year. Click Here for more info.
Consider checking downloads for spyware.
Lavasoft's
Ad Aware is a great program for detecting
freeware that is tracking your surfing
habits. The new version allows you to quickly
update the program's database to detect new
methods implemented by spyware.
Lastly, once you think your system is
safe, visit
shields-up to see if your right. They will scan your system for exploits and give you the results.
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