Anti Virus Software with Suspicious Behavior Approach

AntiVirus software using a suspicious behavior approach, monitors the behavior of your programs.
If one of these programs tries to do unusual actions, like wriing data to an executable program, the anti virus software will pause your computer, gives you some kind alert and ask you what to do.

The big advantage of the suspicious behavior approach is that brand new viruses can be detected and removed. On the other hand this method generates a lot of false detections, which causes users to be less sensitive to warnings given by the antivirus software
Since regular and decent software more often modify other data like executable files this method is getting less effective and modern anti virus software vendors are using this approach less and less in their virus scanners.

Nowadays virusscanners contain more and more sophistacated software.
Please read our article about heuristic analysis implemented in antivirus software

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