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Antivirus Reviews: Pick And Choose What Is Best For Your Computer
Anti virus software consists of computer programs that attempt to identify, thwart and eliminate computer viruses and other malicious software (malware). Most commercial antivirus software uses both of these approaches, with an emphasis on the virus dictionary approach. Historically, the term antivirus has also been used for benign computer viruses that spread and combated malicious viruses. This was common on the Amiga computer platform.
To achieve consistent success in the medium and long term, the virus dictionary approach requires periodic downloads of updated virus dictionary entries. As civically minded and technically inclined users identify new viruses in the wild, they can send their infected files to the authors of antivirus software, who then include information about the new viruses in their dictionaries.
Dictionary based antivirus software typically examines files when the computer's operating system creates, opens, closes or emails them. In this way it can detect a known virus immediately upon receipt. A System Administrator can typically schedule the antivirus software to examine all files on the user's hard disk on a regular basis. Although the dictionary approach can effectively contain virus outbreaks in the right circumstances, virus authors have tried to stay a step ahead of such software by writing oligomorphic, polymorphic and more recently metamorphic viruses, which encrypt a part of them or otherwise modify themselves as a method of disguise, so as to not match the virus's signature in the dictionary.
Some antivirus software uses other types of heuristic analysis. For example, it could try to emulate
the beginning of the code of each new executable that the system invokes before transferring control to that executable. If the program seems to use self modifying code or otherwise appears as a virus, one could assume that a virus has infected the executable. However, this method could result in a lot of false positives.
Yet another detection method involves using a sandbox. A sandbox emulates the operating system and runs the executable in this simulation. After the program has terminated, software analyzes the sandbox for any changes which might indicate a virus. Because of performance issues, this type of detection normally only takes place during on demand scans. Some virus scanners can also warn a user if a file is likely to contain a virus based on the file type.
Here are some more computer virus protection articles...
Antivirus Reviews: Pick And Choose What Is Best For Your Computer
Anti virus software consists of computer programs that attempt to identify, thwart and eliminate computer viruses and other malicious software (malware). Most commercial antivirus software Read more...
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Symantec Product Norton AntiVirus
Symantec makes Norton AntiVirus. Since its creation in 1990, over 100 million people around the world have used Norton AntiVirus. The early versions of Norton AntiVirus were integrated and Read more...
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Useful Information, Important Links, Resources and Articles.
WindowsRecovery Removal and Analysis
Windows Recovery is a scareware which masquerades as a system performance optimization tool. Belonging to the FakeSysdef trojan family, it comes in many names including HDD Defragmenter, Check Disk, Windows Repair, Windows Restore, Windows SafeMode, Windows Fix Disk and Windows Recovery. It uses a variety of fake warning alerts about non-existent errors in computer hard [...]
Antivirus Protection Removal and Analysis
Similar in design and behavior to Antivirus soft and Antivirus Live rogues, this scareware aggressively displays a number of fake security alerts about network infiltration attempts and non-existent malware. Hijacks Internet Explorer by modifying the proxy settings and automatically opens porn websites every now and then. IE is allowed to visit only the sites related [...]
BitDefender 2011 Removal and Analysis
This scareware uses the name of a legitimate security application to ply its trade upon unwary users. BitDefender 2011 scareware copies the logo and design elements of the well known bitdefender range of security products. Once installed, this rogue software blocks execution of legitimate programs with fake security alerts. These fake warning messages are very [...]
Antivirus AntiSpyware 2011 Removal and Analysis
Antivirus AntiSpyware 2011 is rogue security application, similar to Internet Security 2010, Security essentials 2010, Security essentials 2011 etc., Once installed, this scareware produces frequent fake security warnings about non-existent malware and network intrusions. This rogue software pops up a security alert and blocks execution of legitimate programs. The fake security alerts come in a [...]
Antivirus Clean 2011 Removal and Analysis
Antivirus Clean 2011 is a fraudulent security software that displays fake Windows warning messages about non-existent malware infections to scare the victim to purchase a license. This scareware actually phishes for the credit card data instead of just scamming the user for a subscription. The secure payment page to which the user is taken on [...]
Malware runs even in safe mode ? Cleaning Malware
Yes! malware can even run in safe mode and safe mode with networking. A common devious method is to inject a malware process into legitimate Windows processes like userinit.exe, explorer.exe etc., These processes are loaded as part of the core drivers and services that Windows loads during a safe mode boot. … [visit site to [...]
MS Removal Tool Removal and Analysis
MS Removal Tool is similar in design and behavior to the System Tool rogue. It uses yellow system alert messages to get itself installed. MS Removal Tool blocks execution of most programs and Windows administrative tasks like Task Manager, Command prompt, Registry editor etc., presumably to protect itself and at the same time to scare [...]
Find and Remove SpyEye Banking Trojan
SpyEye banking trojan first made its appearance about a year back as a competitor to what is till then known as the king of all bots Zeus/Zbot. Security researchers believe that both bots have now joined hands to prey upon online banking users world-wide. … [visit site to read more] Advt Limited period offer! Genuine [...]
Recommended Reads ? 26 March 2011
FireEye Malware Intelligence Lab: An overview of Rustock – “As you might have seen in the news, the largest spam botnet, Rustock, was recently taken down in a collaborated, coordinated way. All parties involved were bound by a sealed federal lawsuit against the John Doe’s involved, but now that … [visit site to read more] [...]
CleanThis Removal and Analysis
CleanThis scareware uses the Fake Security Essentials Alert to download itself on to the victim’s computer. Once installed, this rogue software proceeds to restart the system automatically, on restart access to the desktop is completely blocked. Taskbar is hidden, right click is disabled and the fake scan is run identifying non-existent malware. You cannot close [...]
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McAfee Antivirus: Will It Really Protect Your Computer From CTV’s?
A Computer Transmitted Virus, or CTV, is very common to get in this day and age. In computer security, a computer virus is a self replicating computer program that spreads by inserting copies Read more...
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