Linux Forensics, key commands for data analysis and recovery

18 September 2024 2 minutes Author: Lady Liberty

A detailed overview of the key commands for digital forensics in Linux. Learn how to analyze logon activity, inspect running processes, recover deleted binaries, and investigate network activity. In addition, we will consider methods of searching for unusual files, analyzing installed programs, and detecting persistent access mechanisms in the system. This comprehensive guide will help security professionals quickly find and eliminate potential threats.

Teams

Hunting unusual files

Used to detect potentially harmful files or files not normally found on the system, such as suspicious scripts or configurations.

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Logon activities

This command helps determine who logged in and when, which is important for detecting suspicious login activity on accounts.

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Recover deleted binary

This command allows you to restore a deleted process binary, which can be useful for malware analysis.

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Unusual system resources

This command analyzes system resource usage to identify processes or files that may be causing abnormal system loads.

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Review network

The team looks at network connections, open ports, and activity on network interfaces to detect unsafe or unusual connections.

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Review activities

This command allows you to view user activity, including modified files, running programs, and interacting with the system.

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General information

Gets basic system data, including information about the kernel, runtime, and OS version. This is an important stage for the initial analysis of the environment.

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Installed programs

This command allows you to view the list of programs installed on the system, which helps to identify potentially unwanted software.

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File investigation

This command can be used to check file properties such as owners, permissions, and last modified time, which helps detect traces of tampering.

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Persistent mechanisms

The team helps identify mechanisms that attackers can use to maintain access.

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Review processes

Shows a list of running processes, which allows you to detect malicious programs or unusual activity on the system.

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