Antivirus/Antimalware

Antivirus/Antimalware
Mitigation
ID	M0949
NIST SP 800-53 Rev. 4	SI-3
IEC 62443-3-3:2013	SR 3.2
IEC 62443-4-2:2019	CR 3.2

Description

Use signatures or heuristics to detect malicious software.

Within industrial control environments, antivirus/antimalware installations should be limited to assets that are not involved in critical or real-time operations. To minimize the impact to system availability, all products should first be validated within a representative test environment before deployment to production systems.1

Techniques Addressed by Mitigation

Name	Use
Engineering Workstation Compromise	Install anti-virus software on all workstation and transient assets that may have external access, such as to web, email, or remote file shares.
Spearphishing Attachment	Deploy anti-virus on all systems that support external email.
User Execution	Ensure anti-virus solution can detect malicious files that allow user execution (e.g., Microsoft Office Macros, program installers).