Kaspersky Embedded Systems Security for Linux
3.3.0
English

Contents

System Integrity Check

While the System Integrity Check (ODFIM) task is running, each object change is determined by comparing the current state of the monitored objects with its original state, which was previously established as a baseline.

To use the task, a license that includes the corresponding function is required.

The system baseline is created during the first run of the ODFIM task on the device. You can create several ODFIM tasks. For each ODFIM task, a separate baseline is created. The task is performed only if the baseline corresponds to the monitoring scope. If the baseline does not match the monitoring scope, Kaspersky Embedded Systems Security generates a system integrity violation event.

The baseline is rebuilt after an ODFIM task has finished. You can rebuild a baseline for a task using the corresponding setting. Also, a baseline is rebuilt when the settings of a task change, for example, if a new monitoring scope is added. The baseline will be rebuilt during the next task run. You can delete a baseline by deleting the corresponding ODFIM task.

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[Topic 246668]

Scan settings section (System Integrity Check)

System Integrity Check task settings

Setting

Description

Rebuild baseline on each task start

This check box enables or disables the rebuilding of the system baseline every time the System Integrity Check task is started.

This check box is cleared by default.

Use hash for monitoring (SHA-256)

This check box enables or disables use of the SHA-256 hash for the System Integrity Check task.

SHA-256 is a cryptographic hash function that produces a 256-bit hash value. The 256-bit hash value is represented as a sequence of 64 hexadecimal digits.

This check box is cleared by default.

Track directories in monitoring scopes

This check box enables or disables checking of the specified directories while the System Integrity Check task is running.

This check box is cleared by default.

Track last file access time

This check box enables or disables the tracking of file access time while the System Integrity Check task is running.

This check box is cleared by default.

Monitoring scopes

The table that contains the monitoring scopes scanned by the task.

By default, the table contains the Kaspersky internal objects (/opt/kaspersky/kess/) monitoring scope.

You can add, configure, delete, move up, or move down monitoring scopes in the table.

Clicking the Move down button moves the selected item down in the table.

Kaspersky Embedded Systems Security scans objects in the specified scopes in the order they are listed in the table of scan scopes. If you want to configure security settings for a subdirectory that are different from the security settings of the parent directory, you must place the subdirectory higher than its parent directory in the table.

This button is available if a scope is selected in the table.

Clicking the Move up button moves the selected item up in the table.

Kaspersky Embedded Systems Security scans objects in the specified scopes in the order they are listed in the table of scan scopes. If you want to configure security settings for a subdirectory that are different from the security settings of the parent directory, you must place the subdirectory higher than its parent directory in the table.

This button is available if a scope is selected in the table.

Clicking the Delete button excludes the selected scope from scans.

This button is available if at least one scan scope is selected in the table.

Clicking the scan scope name opens the <Scan scope name> window. In this window, you can modify the settings of the selected scan scope.

Clicking the Add button opens the <New scan scope> window. In this window, you can define a new scan scope.

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[Topic 246669]

Add scan scope window

In this window, you can add or configure the monitoring scope for the System Integrity Check task.

Monitoring scope settings

Setting

Description

Scan scope name

Field for entering the monitoring scope name. This name will be displayed in the table in the Scan settings section.

The entry field must not be blank.

Use this scope

This check box enables or disables scans of this scope by the application.

If this check box is selected, the application controls this monitoring scope during the application's operation.

If this check box is cleared, the application does not control this monitoring scope during the operation. You can later include this scope in the component settings by selecting the check box.

The check box is selected by default.

File system, access protocol and path

Entry field for the path to the local directory that you want to include in the monitoring scope. You can use masks to specify the path.

You can use the * (asterisk) character to create a file or directory name mask.

You can indicate a single * character to represent any set of characters (including an empty set) preceding the / character in the file or directory name. For example, /dir/*/file or /dir/*/*/file.

You can indicate two consecutive * characters to represent any set of characters (including an empty set and the / character) in the file or directory name. For example, /dir/**/file*/ or /dir/file**/.

The ** mask can be used only once in a directory name. For example, /dir/**/**/file is an incorrect mask.

You can use a single ? character to represent any one character in the file or directory name.

The field must not be blank.

The / path is specified by default – the application scans all directories of the local file system.

Masks

The list contains name masks for the objects that the application scans.

By default the list contains the * mask (all objects).

You can add, edit, or delete masks.

Clicking the Delete button removes the selected item from the table.

This button is available if at least one item is selected in the table.

The selected element's settings are changed in a separate window.

Clicking the Add button opens a window where you can specify the new item settings.

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[Topic 218702]

Exclusion scopes section

In the Exclusion scopes section for the System Integrity Check task, you can also configure exclusion scopes for the scan and exclusions by mask.

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[Topic 246675]

Exclusion scopes window

The table contains monitoring exclusion scopes for the System Integrity Check component. The application does not scan files and directories located at the paths specified in the table. By default, the table is empty.

Monitoring exclusion scope settings

Setting

Description

Exclusion scope name

Exclusion scope name.

Path

Path to the directory excluded from monitoring.

Status

Indicates whether the application excludes this scope from monitoring during the task operation.

You can add, edit, and delete items in the table.

Clicking the Delete button removes the selected item from the table.

This button is available if at least one item is selected in the table.

The selected element's settings are changed in a separate window.

Clicking the Add button opens a window where you can specify the new item settings.

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[Topic 246676]

Add exclusion scope window

In this window, you can add and configure the monitoring exclusion scope for the System Integrity Check task.

Monitoring exclusion scope settings

Setting

Description

Exclusion scope name

Field for entering the exclusion scope name. This name will be displayed in the table in the Exclusion scopes window. The entry field must not be blank.

Use this scope

The check box enables or disables the exclusion of the scope from monitoring when the application is running.

If this check box is selected, the application excludes this scope from monitoring during the task operation.

If this check box is cleared, the application monitors this scope during the task operation. You can later exclude this scope from monitoring by selecting the check box.

The check box is selected by default.

File system, access protocol and path

Entry field for the path to the local directory that you want to add to the exclusion scope. You can use masks to specify the path.

You can use the * (asterisk) character to create a file or directory name mask.

You can indicate a single * character to represent any set of characters (including an empty set) preceding the / character in the file or directory name. For example, /dir/*/file or /dir/*/*/file.

You can indicate two consecutive * characters to represent any set of characters (including an empty set and the / character) in the file or directory name. For example, /dir/**/file*/ or /dir/file**/.

The ** mask can be used only once in a directory name. For example, /dir/**/**/file is an incorrect mask.

You can use a single ? character to represent any one character in the file or directory name.

The field must not be blank.

The / path is specified by default. The application excludes all directories of the local file system from scan.

Masks

The list contains name masks of the objects that the application excludes from the monitoring.

By default the list contains the * mask (all objects).

You can add, edit, or delete masks.

Clicking the Delete button removes the selected item from the table.

This button is available if at least one item is selected in the table.

The selected element's settings are changed in a separate window.

Clicking the Add button opens a window where you can specify the new item settings.

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[Topic 246677]

Exclusions by mask window

You can configure the exclusion of objects from monitoring based on name masks. The application does not scan the files with the names containing the specified masks. By default, the list of masks is empty.

You can add, edit, or delete masks.

Clicking the Delete button removes the selected item from the table.

This button is available if at least one item is selected in the table.

The selected element's settings are changed in a separate window.

Clicking the Add button opens the Object mask window. In this window, in the Define object mask field, you can specify the name template for files that Kaspersky Embedded Systems Security excludes from scans.

Examples:

The *.txt mask refers to all text files.

The *_my_file_??.html mask refers to html files starting with any characters, and ending with _my_file_ followed by any two characters (for example, 2020_my_file_09.html).

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[Topic 202412_3]