The most common and severe computer problem that users face is that of malware. Internet usage continues to grow and hackers are finding increasingly more sophisticated ways to access a computer using Trojans, rootkits and spyware. Some viruses are easy to identify and remove, but other viruses are not detected by anti-virus programs and must be removed manually.
The main characteristic of the virus that differentiates it from other forms of malware is that it has the ability to replicate itself. Not only do many virus programs attempt to spread themselves to other computers through email and downloads, but some programs are capable of downloading other viruses. One common problem is if a virus adds a downloader that will keep downloading the virus every time it is removed.
Some viruses are fantastic at disguising there existence. They are able to mask themselves as legitimate software programs and can hide themselves in core system processes. Other viruses are able to attack antivirus programs and alter or disable them. By doing so, they are able to keep the antivirus programs from removing them.
Rogue infections can disguise themselves as fake registry cleaners, anti-virus programs or optimization programs. They then offer to remove viruses that are hidden on the computer for a fee.
The Trojan is a special type of malware that can disguise itself as another program or comes bundled with that program. Oftentimes, a website will offer a download in the form of a compressed file and will then place the virus within the compressed file. Once downloaded, the virus is able to execute itself and carry out various functions.
Another type of virus is the worm. This is a program that is able to exploit vulnerabilities that are found in networks. Until the vulnerability is detected and fixed with a patch, the system will continue to be exploited by worms.
Some viruses allow for hackers to take control of a computer. These computers then become illegal botnets. The hacker is then able to control the computer. Many Trojans that compromise the computer’s security then delete themselves so a virus scan is unable to detect the virus. However, the hacker will remain able to seize control of the computer. The hacker can then steal system resources, such as utilizing some of the CPU power to perform calculations, can steal financial information or can use the computer to perform illegal actions such as piracy.
While some viruses seek to achieve a specific purpose, other viruses simply exist to allow the hacker to make mischief. The hacker uses the virus to damage the computers of other users by deleting files, changing configurations and performing other forms of mischief. Small changes in a computer’s configuration can make the computer inoperable or cause other glitches.
The most serious computer viruses can be difficult to remove without the help of computer geeks in Calgary. Computer geeks Calgary services provide the technical assistance needed to locate and remove viruses.
If a virus is discovered, the user should immediately write down the name of the virus and shut the computer down. The user should then restart the computer in safe mode with networking enabled. With the virus name, it might be possible to conduct the research necessary to find out how to remove it. However, if the user cannot figure out what the virus is or how to remove it, the best option is to shut it down and take it to Calgary computer geeks. The computer geeks in Calgary are able to look at the computer’s log using special diagnostic tools and can usually identify the virus.