Every computer user is always warned about threats that could attack the computer. Malware, which is short for malicious software, is any software that attempts to gain illegal access to private computer systems disrupt computer operations or gain unauthorized sensitive information. Generally, they include viruses, worms, rootkits, Trojans, and backdoors. All these can have undoubtedly terrible results to your computer system, files and privacy.
Here are a few problems I’ve been dealing with for my clients lately.
1. Viruses
A virus is a malware program that works by self-replication. Once executed, it makes copies of itself into files, the hard drive or other computer programs, after which they are said to be ‘infected’ by the virus. A good example is the Navidad virus which is a mass-mailer program.
- Worms
Worms are among the most common types of malware. They work almost the same way as viruses, that is, by replicating themselves and spreading to other computers. The key difference is that while a virus requires execution of the virus program to start the replication, worms self-replicate and spread independently. Most commonly, they are transmitted by emails with worm attachments. Worms overload web servers and consume a lot of bandwidth. Additionally, they contain code (payload) written primarily for data theft and creating and/or deleting botnets, which aid in the distribution of Denial-of-Service attacks. An example of a worm is Mydoom.
- Rootkits
A rootkit is stealthy malware software that is designed to hide the existence of certain processes or programs from normal detection methods and enable continued privileged access to a computer. Once installed in your computer, the party behind the rootkit distribution or installation can remotely execute files, access and/or steal information, modify system configuration or alter software. An example is win32k.sys
- Spyware
These malware work by spying on user activity without their knowledge. These activities include internet usage tendencies. Spyware also collect keystrokes which can be used in password hacking for financial services. This is the type of virus I found recently working on my clients website (see image inset). They are mostly spread through third party installation when installing legit software. An example is Search Protect that has been affecting www.bestgoosedowncomforter.com It is designed by Conduit Ltd and takes over your browser and won’t let you change your homepage. It also brings endless advertisement pop-ups which are very annoying.
MALWARE REMOVAL
There are many security options available. It is advisable to choose security software that is effective and does not slow down your computer a lot. Antivirus, Antimalware and Anti Spyware software are frequently updated and help keep your computers clean free from malware infections and intrusions. Some good antivirus software includes Bitdefender Total Security and Kaspersky Antivirus.
