File Scan

File Scan is one of the main features of V3 Net for Linux Server. This feature provides protection for your server by scanning the files on the server, detecting security threats, and removing them.

Scan Target Setting

Go to the File Scan > Scan Targets tab.
Select the directories containing the files you want to scan.

Note
If you select a parent directory, all subdirectories will also be selected.

Click Scan Now and the scan will run automatically.
The result of the scan is displayed. If a security threat is detected, click Repair to start the repair process.

Custom Scan Setting

Go to the File Scan > Custom Scans tab.
Click Add.
Type in a nickname for the scan. (The name must be less than 40 characters long and cannot contain special characters.)
Select one or more directories to scan from Scan Targets.
Click OK.
You can also modify or delete the added item by clicking Modify/Delete.
Click Apply at the bottom of the page to save the changes.

Scheduled Scan Setting

Go to File Scan > Scheduled Scan tab.
Under the Scheduled Scan section, select the Enable scans to run at set times checkbox if it is not selected.
Click Add.
When the setting window appears, select Enable scans to run on specified schedules and specify the items below.

Type in a nickname for the scan. (The name must be less than 40 characters long and cannot contain special characters.)
Select the time to run the scan. You can set the scan to run Once, Every Day, Every Week, or Every Month.

Note
To avoid any possible performance issues on the server, it is recommended that you set the scan to run during off-business hours.

Select the directories containing the files you want to scan.
Select whether to use Diagnostic Scan. It scans running processes first before starting scan, and if there is a malicious process being run, it stops the process. When malware is detected, it repairs or delete it according to the set actions.
Set the scan setting under Setting.
Select files to scan between Scan all files and Scan vulnerable files only. Default value is Scan all files.
Scan all files: Scan all files in the directory to scan.
Scan vulnerable files only: Scan files vulnerable to malware only. It takes shorter time compared to Scan all files, but there can be undetectable malware because it doesn't scan all files.
Additionally scan the following extensions: If you select Scan vulnerable files only, you can enter the file extensions that you want to scan in addition to the default executables, macros, and scripts.
Scan including all scan exceptions and scan exception malware: Scan all targets including malware which are set as scan exceptions.
Select whether to limit the maximum file size and scan compressed files and NFS files under Advanced Option.
Limit the maximum file size: Exclude the file exceeding the maximum size set by user from scan. It may shorten the scan time, but there is a possibility that malware is not detected.
Scan compressed files: Scan compressed files. If a file within a compressed file is infected by malware, it may scan for protection. If you set to scan compressed files, it may take longer time according to the size and number of the file, and whether it is multicompression or not. Default value is Do not use.
NFS Scan: Scan NFS file system. This feature is basically enabled, so that you have to disable the setting if you want to exclude files in the NFS directory from scan.>

Note
If you select Scan vulnerable files only, only the file types that are most likely to be harmful are scanned. This option is provided in case you need an improved scan performance but you are advised to consider the risks involved with not scanning all files.

Select the action to take when malware is detected.
Ignore: Ignore even if malware or infected compressed files are detected.
Repair: Repair when malware is detected.
Delete: Delete the item when malware or infected compressed files are detected.
Automatically repair detected threats: Select the checkbox to automatically repair malware when detected so that you do not have to take any action.
Send all infected files to Quarantine before taking action: Select the checkbox to isolate the malware-detected file to quarantine before taking action. This option is useful if you want your system to be safe from the further spread of infection, yet double-check that none of your important files are automatically deleted.
Select the CPU Usage of the scan. Default value is High.
Set the Maximum Scan Time (at least 30-min) to pause the scan after set time. Default value is 1 hour.

Note
If you set the maximum scan time, repair action is set as Automatically repair. Also, the scan is automatically paused if the set scan time is over.

Set the Automatically resume scans terminated by the time limit. The scan will continue from the terminated location and will not check for changes in the scanned locations.

Note
In case of Scheduled Scan, if the scan is paused due to the set maximum scan time, it will be resumed when the next Scheduled Scan. For example, if you set Scheduled Scan period as '1 pm everyday,' and scan time as '2 hours,' Scheduled Scan starts at 1pm on day 1 of the month and ends after 2 hours, and it resumes at 1pm on day 2.

Click OK.
You can also modify or delete the added item by clicking Modify/Delete.
Click Apply to save the settings.