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Furthermore, the antivirus agent 170 and the antivirus module 180 may include a functional making possible both a r type of antivirus check (for example, a signature ysis of files based on a hash sum comparison) and a more complicated, allowing for a more detailed ysis (for example, by using an expert system based on an ysis of events which have occurred)。 The functional of each component depends on the settings of the antivirus system, which is generally done when implementing this system in the virtual environment 120 and when installing the antivirus agent 170 on each VM 150。

During the setup, one uses a criterion such as the functional capability of the VM 150。 In other words, the parameters of the computing resources of the host machine 110 which have been allocated to the VM 150。 Therefore, the functionality of the components may either be different from each other or similar。 Sample aspects of the structure of the antivirus agent and the antivirus module, as well as their purposes and the interactions between them, are examined in greater detail herein with reference to FIG。

2。 The functional of each component may change over time, for example, due to a change in the number of computing resources of the host machine 110 allocated to the virtual machines 140 and 150。

The last component of the antivirus system is the control module 160。 The control module 160 is designed to process information arriving from each antivirus agent 170。 By information is meant requests to perform an antivirus check or intercept a suspicious event。 After this, the control module 160 determines at least one necessary method of antivirus checking and at least one component of the antivirus system (170 or 180) that are used to perform said antivirus check。 Besides the mentioned components 170 and 180, a request to perform an antivirus check may also be sent to any given external component via the Internet 190, for example, to the security service 195, which performs the ysis and provide to the control module 160 the results of the check。

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