System & File Scanning [CUI Data]

Perform periodic scans of organizational systems and real-time scans of files from external sources as files are downloaded, opened, or executed.

Use anti-malware software to scan for and identify viruses in your computer systems and determine how often scans are conducted. Real-time scans look at the system whenever new files are downloaded, opened, and saved. Periodic scans check previously saved files against updated malware information. Example You work with your company’s email provider to enable enhanced protections that will scan all attachments to identify and quarantine those that may be harmful prior to a user opening them [c]. In addition, you configure antivirus software on each computer to scan for malicious code every day [a,b]. The software also scans files that are downloaded or copied from removable media such as USB drives. It quarantines any suspicious files and notifies the security team [c]. Potential Assessment Considerations • Are files from media (e.g., USB drives, CD-ROM) included in the definition of external sources and are they being scanned [c]?