Tag Archives: Software

Antivirus Software – It’s All About Computer Virus Protection Anti-Infiltration

Antivirus Software – It’s All About Computer Virus Protection Anti-Infiltration

 

Anti-Virusunlike other malicious programs like spyware, worms, adware, rootkits, phishing and Trojan horses, viruses are computer programs that uncanny ability of propagating itself to various system files to infect, and may be transmitted over networks, Internet, e-mail , Instant Messaging, file sharing channels as well as removable media such as diskettes, CDs, DVDs or USB sticks. Some computer viral infections display symptoms that will eventually be noticed by most computer users. However, the vast majority of computer viruses are causing havoc that placement and unnoticed long enough for the damage to be irreversible. Those are the reasons that anti-virus software products are so crucial.

Antivirus software programs were originally created for computer viruses began to spread in the 1980 fighting. more sophisticated current antivirus software programs are more fertile and thus able to identify and remove viruses, along with all other harmful malware. After finding all the malware, the antivirus software to quarantine or encrypt the infected files inaccessible or ineffective, they will try to recover the files by removing the malware, but this can not always be successfully accomplished or they will completely remove the infected files from the system.

The antivirus software programs are numerous and they are all one or more of the following three main methods for identification of malware: The most common is the signature-based detection method. This method breaks files into small segments and compares the contents of each of these segments against a dictionary of the virus signatures is essentially a list of known virus code. This method is somewhat limited in the equation can only be carried out against known viruses and will not be able to select one of the new tracks. Antivirus software relies on signature-based detection method requires frequent virus signature updates for the dictionary and was established to examine all files when the computer’s operating system creates, opens, closes or e-mail them.

The malicious activity detection monitors the behavior of all programs and thus provides protection against new viruses. Any suspicious behavior was reported to the computer used to decide how to proceed – to reject or accept. The heuristic-based detection method was used by the higher end and most advanced antivirus software and is designed to identify new and unknown viruses.

Its task of antivirus software that uses heuristic – based on the detection method used one of two techniques: a) File Analysis – It analyzes suspicious files and virus-like instructions that can significantly slow down the computer, or b) File emulation – it’s running in virtual environments, notes of their actions and performances, and then determine whether these programs are malicious or not.

Needless to say, the best antivirus softwareand one that is most effective, is that using a combination of several of the above methods. After all antivirus software, it’s all about the protection of anti-computer virus infiltration and maintain that security.

Need help withfixing a slow computer ask a question at wwdn.org

Find More Anti Virus Programs Articles

Malware – How to Prevent and Remove Malicious Software From a PC

Malware – How to Prevent and Remove Malicious Software From a PC

Unlike the conclusive destructiveness a computer virus does to a PC, malicious software or malware, is designed to operate behind the scenes, beyond the reach and know-how of the PC user. Malware lurks in the background and functions to steal system resources and potentially personal data from the host PC. Malware infections can manifest as low-grade annoyances like odd PC behavior and slower system speed or a more severe infection where your PC is near stand-still having lost functionality and system resources to the infection’s background activity.

The stories of malware rackets boggle the mind. The parasitic, body-snatcher nature of a malware infection is akin to science fiction-one ill-advised click and ‘ZAP!’ your PC goes from loyal, healthy pet, to a tail-wagging zombie with a three-legged walk. And because it’s a remote and potentially lucrative crime-thousands of people fall victim to rogue software every day and some actually pay to download it.

In fact, new ground was broken earlier this year in malware sophistication with ‘rogue security software’-malware posing as anti-virus or anti-malware software. The viewer gets an unsolicited email or a pop-up alert saying their system has been compromised in some way and a free scan or anti-virus/malware software download is needed to clean the (phantom) infection off. It’s the download being offered, that carries the malware trojan. Computer security analysts estimate more than 100 million PCs have been struck by this form of malware in 2009 alone. (One in ten victims actually paid for the malicious software they downloaded on blind trust, too!) The average scammer takes in ten thousand dollars a day running a rogue security software racket.

Search the term ‘rogue security software’ on Wikipedia and see a partial, (but LONG) list of the software names malware poses under. Note the similarities in naming conventions to authentic products. The ‘severity of infection’ bar was set to a new height just a few months ago with the spread of System Security 2009 Virus, also known as Systemsecurity 4.51, a name that plays off of Symantec’s Norton System Security products. Once downloaded, the malware replicates copies of itself more deeply into the PC’s registry database; deactivates End-Task functionality; disables in-place anti-virus protection; prevents download of new anti-virus programs; and bombards you with a pop-ups demanding payment for fixing the mess. Essentially this malicious software ‘paints you into a corner’ and extorts a payment for a fraudulent ‘fix’ you don’t even get. While there are ways to get rid of it, the infection is so elaborate that manual file deletion is strongly discouraged. If you suspect you may be infected by this one, check security-related online forums for successful techniques others have used to get rid of it.

Security experts estimate 90% of PCs have some form of malware infecting them–most are low-level annoyances like minor odd behavior and slower PC performance. It’s important you scan and clean your system with anti-malware software regularly because even low-level infections can grow worse as the software ‘holds the door open’ to other forms of malware, tracks your computer usage, or steals personal data. Given newer, more sophisticated forms of malware are sure to come, PC users need to be better prepared to avoid falling victim to system-sapping malware or more severe ‘rogue security software’ rackets. Here are some pointers:

1. Install, use and regularly update a well-rated anti-virus suite from a software manufacturer that regularly updates their product. You can buy a product subscription or use a well-rated, reputable free AV product like AVG Free or Trendmicro House Call.

2. Install, use and regularly update a separate, well-rated anti-malware program from a manufacturer that regularly updates their product. (There is a helpful link at the end of this article to a well-rated, well-supported free option along with instructions for using it!)

3. Always qualify the safety of unsolicited email attachments or download offers prior to opening or downloading them. Even with the best protections in place, your choice to open or download is the last line of defense your PC has. Be aware malware is packaged inside offers of ‘freebies’ like browser tool bars, screensavers, gadgets, games, movies, music, even file swapping services. Confirm a source is safe and reputable, before you download.

4. Check out sources by doing Google searches on the software title. Even review online forums talking about the product or service to qualify other’s experiences before you download.

5. Never react to unsolicited pop-up messages. Rogue security software capitalizes on ‘social engineering’- the manipulation of people by fear or too-good-to-be true (free) enticements. Set your browser security to reduce or stop all pop- ups, if you are not using ‘Firefox’, which is built to prevent 100% of pop-ups.

6. Be aware of redirects off of legitimate websites or Google search results pages. Scammers operate sophisticated ‘funnels’ online to redirect unsuspecting surfers onto infected websites by compromising legitimate websites or seeding infected URLs into search results pages.

7. Keep your operating system up-to-date with the latest updates as they are offered. Updates for Windows and other operating systems are often security patches for loopholes scammers have demonstrated an ability to exploit.

Just running an anti-virus suite is no longer enough protection for your PC where malware can enter a PC by user error. Remain vigilant as protector of your PC investment by enacting the above measures and knowing where to get answers when you notice PC performance dropping off–an obtuse sign of malware infections. I have had great results using a well-rated and free anti-malware program that I learned about from computer expert and author Kim Burney in her latest e-book, the DIY Computer Maintenance Guide.

Get instructions on a proven way to clean off malware from your PC by downloading a free excerpt from the “DIY Computer Maintenance Guide”, by computer expert and author Kim Burney by clicking here: http://www.ZappingTheCrap.com

More Anti Malware Programs Articles