[Legacy] Commands Audit

The Commands Audit module provides Sysdig Secure users with a searchable and sortable audit trail of user commands executed within the infrastructure.

Note

While policy events are an inherently suspicious activity that warrants investigation, commands are not themselves considered suspicious.

The Sysdig Agent examines all execve events. Information about commands that meet the following criteria is saved by the Sysdig backend, and made available for review as a command entry in the Commands Audit module table:

  • A program was launched by a shell associated with a terminal (i.e. is related to a user-entered command).

  • The parent process was launched in a running container (i.e. the result of a docker exec <container> command).

Warning

If an excessive volume of commands occurs in a given second, some commands may be excluded from the information sent from the agent to the Sysdig backend.

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The table below outlines the information displayed in the Command Audits module:

Data

Description

Time

The date and time the command was executed.

Shell

The terminal shell the command was executed in.

Command Line

The full command executed, including flags/variables.

Scope

The affected scope within the infrastructure.

Review a Command

Individual commands can be reviewed by selecting the line item in the Commands Audit module table. This opens the Command Details window:

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The table below outlines the information displayed in the Command Details window:

Name

Description

When

The date and time the command was executed.

Command

The command executed.

Full Command Line

The complete command, including all variables/options.

Working Directory

The directory the command was executed in.

Scope

The entities within the infrastructure impacted by the command.

Host

The hostname and MAC address of the host the command was executed on.

Container

The container ID, container name, and image that the command was executed on.

Additional Details

Detailed user/host information:

  • The Process ID (PID) of the command.

  • The Parent Process ID (PPID) of the command.

  • The user ID of the user that executed the command.

  • The Shell ID.

  • The distance from the root of the process hierarchy.

Filtering the Commands Table

The Commands Audit module's table can be filtered to display only the most relevant commands for a particular issue, or to provide greater visibility of a more targeted scope within the infrastructure. There are three ways to filter the table, which can be used in tandem to refine the information presented.

Groupings

Groupings are hierarchical organizations of labels, allowing users to organize their infrastructure views in a logical hierarchy. Users can switch between pre-configured groupings via the Browse By menu, or configure custom groupings, and then dive deeper into the infrastructure.

Time Navigation

Use the time window navigation bar to show only activities run within that window. (For more information, see also Time Windows.)

Note

Sysdig Secure does not currently provide the functionality to configure a custom time window.

Search Filters

Search filters can be applied by either using the search bar directly or by adding pre-configured search strings via the Command Details panel. The search bar example below displays only table items that include apt-get:

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To use a pre-configured search string:

  1. From the Commands Audit module, select a command from the table to open the Command Details window.

  2. Add a filter by click the Add link beside one of the available options:

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The example below shows the table filtered by the working directory:

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Pre-configured filters exist for the following information:

  • Command

  • Working Directory

  • Process ID

  • Parent Process ID

  • User ID

  • Shell ID

  • Shell Distance

Note

Search filters can be deleted by either deleting the text in the search bar or clicking the Remove link beside the filter in the Command Details window.