McAfee QUICKCLEAN 3.0 Technical Information download pdf (Page 109)

Comodo Endpoint Security Manager - SME - Administrator Guide

• Automatically update virus database - When this check box is selected, Comodo Internet Security checks for

latest virus database updates from Comodo website and downloads the updates automatically, on system start-

up and subsequently at regular intervals.

• Show notification messages - Alerts are the pop-up notifications that appear in the lower right hand of the

screen whenever the on-access scanner discovers a virus on your system. These alerts are a valuable source of

real-time information that helps the user to immediately identify which particular files are infected or are causing

problems. Disabling alerts does not affect the scanning process itself and Comodo Antivirus still continues to

identify and deals with threats in the background.

• Heuristics Scanning Level - Comodo AntiVirus employs various heuristic techniques to identify previously

unknown viruses and Trojans. 'Heuristics' describes the method of analyzing the code of a file to ascertain

whether it contains code typical of a virus. If it is found to do so then the application deletes the file or

recommends it for quarantine. Heuristics is about detecting virus-like behavior or attributes rather than looking for

a precise virus signature that matches a signature on the virus blacklist.

This is a quantum leap in the battle against malicious scripts and programs as it allows the engine to 'predict' the

existence of new viruses - even if it is not contained in the current virus database.

The drop-down menu allows you to select the level of Heuristic scanning from the four levels:

• Off - Selecting this option disables heuristic scanning. This means that virus scans only uses the 'traditional'

virus signature database to determine whether a file is malicious or not.

• Low - 'Lowest' sensitivity to detecting unknown threats but will also generate the fewest false positives. This

setting combines an extremely high level of security and protection with a low rate of false positives. Comodo

recommends this setting for most users.

• Medium - Detects unknown threats with greater sensitivity than the 'Low' setting but with a corresponding

rise in the possibility of false positives.

• High - Highest sensitivity to detecting unknown threats but this also raises the possibility of more false

positives too.

• Do not scan files larger than - This box allows to set a maximum size (in MB) for the individual files to be scanned

during on-access scanning. Files larger than the size specified here, are not scanned.

• Do not scan script files larger than - This box allows to set a maximum size (in MB) for the script files to be scanned

during on-access scanning. Files larger than the size specified here, are not scanned.

Click the 'save' icon for the changes to the settings to take effect.

Manual Scanning

The Manual Scanning setting allows an administrator to set the properties and parameters for Run a Scan (On Demand Scan).

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McAfee QUICKCLEAN 3.0 Technical Information Page 109