You are spoilt for choice when considering the 10 most common computer viruses. They come in all sorts of forms including encrypted sets, secret codes, time delay obstacles, and anti-antivirus specifications. Alternatively you may consider the multi headed varieties or those which lead to misdirection. Some consumers have faced the cloning viruses, authors and bad penny sets. On the other hand you could be dealing with a Melisa and rewriting virus.
- The Sadmind worm of 2001: This one comes with some aliases such as UNIX, IIS, and Solaris. It is a self propagating form of malware which was discovered in China. Unfortunately it tends to provide remote system administration.
- The Beast Trojan of 2002: This is a window based Trojan horse in the backdoor category. The cracker community refers to it as a RAT or Remote Administration Too. An infected computer will be out of your control.
- The SQL Slammer of 2003: A dangerous form of malware was picked up on the 27th of January in that year. It does not have a file and that makes it difficult to track. Any weaknesses in your SQL server will be mercilessly exploited.
- The Sasser of 2004: It is notorious for causing $18.1 billion worth of damage. Computers will slow down when infection. French News agencies were some of the victims although Sven Jaschan did not intend harm when he created it.
- The Bandook RAT of 2005: This is a backdoor Trojan horse which specifically targets the Windows NT systems. A remote control is kidnapped using a server creator. The product is capable of bypassing firewalls by taking charge of processes.
We can then move onto the classification lists depending on the action of the virus.
- Encrypted viruses: These are very hard to debut because their coding is hidden. The encryption is constantly changing so that the firewall can be misled. Using virus protection might help.
- Secret viruses: This category is known for making changes to files so that the antivirus software assumes them to be benign. You have to use a multiplicity of tools in order to deal with these threats.
- Time Delay Viruses: These are disciplined forms of malware which wait to make their move. Once they are settled you do not even have to be online for them to function.
- The anti protection virus: This is sometimes known as the anti-virus virus. It disables any protective measures which you have on the computer. That means that other forms of malware can come in.
- The multi-headed virus: A double pronged approach will mean that .exe files are constantly infected. Any activities that you undertake on the computer will make the situation worse.
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