Back to Control Explorer
SI.1.213
Content
Control Acronym
SI
Family
System And Information Integrity
CMMC Level
1
800-171 Control #
3.14.5
CMMC Description
Perform periodic scans of the information system and real-time scans of files from external sources as files are downloaded, opened, or executed.
CMMC Clarification
Companies should use anti-malware software to scan and identify viruses in their computer systems, and have a plan for how often scans are conducted. Real-time scans will look at the system whenever new files are downloaded, opened, and saved. Periodic scans check previously saved files against updated malware information. Example While cleaning up your office, you find your old thumb drive. You are not sure if you should use it. Then you remember something: Your company just purchased anti-malware software that auto-updates with the latest antivirus code and definitions of all known malware. With this in mind, you decide to plug in the thumb drive. The new anti-malware software scans the thumb drive, finds a virus, then deletes the file.
800-171 Description
Perform periodic scans of organizational systems and real-time scans of files from external sources as files are downloaded, opened, or executed.
800-171 Discussion
Periodic scans of organizational systems and real-time scans of files from external sources can detect malicious code. Malicious code can be encoded in various formats (e.g., UUENCODE, Unicode), contained within compressed or hidden files, or hidden in files using techniques such as steganography. Malicious code can be inserted into systems in a variety of ways including web accesses, electronic mail, electronic mail attachments, and portable storage devices. Malicious code insertions occur through the exploitation of system vulnerabilities.
Other Source Discussion
N/A
CIS Control References
CIS Controls v7.1 8.4, 8.7
NIST 800-53 Control Ref.
NIST SP 800-53 Rev 4 SI-3
CMMC Derived
NIST CSF Control References
NIST CSF v1.1 DE.CM-4
NIST 800-171 References
NIST SP 800-171 Rev 1 3.14.5
Applicable FAR Clause
FAR Clause 52.204-21 b.1.xv
NIST CSF Control Reference
CERT RMM Reference
CERT RMM v1.2 VAR:SG3.SP1
Modification of NIST 800-171B Reference
NIST 800-171B Reference
UK NCSCCyber Reference
AS ACSC Reference
Sub-Criterias
Assessment Sub-Criteria 1
SI.1.213.[a] the frequency for malicious code scans is defined;
Assessment Sub-Criteria 2
SI.1.213.[b] malicious code scans are performed with the defined frequency; and
Assessment Sub-Criteria 3
SI.1.213.[c] real-time malicious code scans of files from external sources as files are downloaded, opened, or executed are performed.