HRDN-7230 - Presence malware scanner

This information is provided as part of the Lynis community project. It is related to Lynis control HRDN-7230 and should be considered as-is and without guarantees. Any advice and commands should be tested before implementing them in production environments.

Control details


Malware scanners search for any traces of malware. Regular checks are advised to improve the detection rate, in case of an intrusion of the system. Also the proper implementation can prevent malware from spreading to other systems. One example might be installing a virus scanner on a mail gateway, to protect users.

How to solve

Every system has its own role to support the business. Depending on the data stored, or transported, the system needs controls in place to detect malware. A web server would benefit from detecting PHP backdoors, where a mail server would benefit from detecting a wide variety of viruses, worms, and trojans.

It is suggested to perform regular malware scanning.

Generic virus detection

Use ClamAV or a commercial alternative

Rootkit detection

  • Rootkit Hunter (rkhunter)
  • Chkrootkit

Malware detection for web servers

  • Linux Malware Detect (LMD)

Need more details?

Consider the upgrade to Lynis Enterprise to receive additional details and guidance. The Enterprise version helps to you with daily health checks of your environment, learn in-depth system hardening, and resources to protect your systems better.

See demo


Lynis is a technical security auditing tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. Typical usage include system hardening, compliance testing, and vulnerability scanning. The project has an active community, including development via GitHub.

Lynis Enterprise

Do you need to collect data from multiple systems or compliance reporting? Lynis Enterprise uses Lynis to collect the data and make your work easier.

Benefits: automate security audits, detailed reporting, compliance testing.

  • Centralized management
  • Improvement plan with priorities
  • Reporting
  • Dashboards
  • Predefined policies
  • Integration (API)
  • Improvement snippets for tools like Ansible, Chef, Cfengine, Puppet, and SaltStack
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