System and Information Integrity · SI.L1-b.1.xv(c)
Real-time malicious code scans of files from external sources as files are downloaded, opened, or executed are performed
An assessment objective under requirement SI.L1-b.1.xv, System & File Scanning, in the System and Information Integrity domain.
Objective Statement
Real-time malicious code scans of files from external sources as files are downloaded, opened, or executed are performed
Objective identity
- Framework
- Cybersecurity Maturity Model Certification · Level 1
- Domain
- System and Information Integrity (SI)
- Objective ID
- SI.L1-b.1.xv(c)
- Parent Requirement
- SI.L1-b.1.xv · Perform periodic and real-time scans
Assessment Procedures
The official government assessment method for this objective, exactly as printed in the DoD CMMC Assessment Guide, Level 1, which reprints it from NIST SP 800-171A (June 2018). An assessor examines artifacts, interviews people, and tests mechanisms to determine the result.
Examine
- System and information integrity policy
- Configuration management policy and procedures
- Procedures addressing malicious code protection
- Malicious code protection mechanisms
- Records of malicious code protection updates
- System security plan
- System design documentation
- System configuration settings and associated documentation
- Scan results from malicious code protection mechanisms
- Record of actions initiated by malicious code protection mechanisms in response to malicious code detection
- System audit logs and records
- Other relevant documents or records
Interview
- System or network administrators
- Personnel with information security responsibilities
- Personnel installing, configuring, and maintaining the system
- Personnel with responsibility for malicious code protection
- Personnel with configuration management responsibility
Test
- Organizational processes for employing, updating, and configuring malicious code protection mechanisms
- Organizational process for addressing false positives and resulting potential impact
- Mechanisms supporting or implementing malicious code protection mechanisms (including updates and configurations)
- Mechanisms supporting or implementing malicious code scanning and subsequent actions
Related Objectives
Source Authority
- Primary Authority
- NIST SP 800-171A (June 2018)
- Official Text
- Requirement Authority
- FAR 52.204-21(b)(1)
- Program Authority
- 32 CFR 170.15(c)(1)(ii) Table 2
- Framework Version
- CMMC Assessment Guide, Level 1 v2.13 (September 2024)
- Effective Date
- 2024-12-16
- Last Verified
- 2026-10-02
Cite This Page
“CMMC SI.L1-b.1.xv(c): Real-time malicious code scans of files from external sources as files are downloaded, opened, or executed are performed.” AssessrLog, a product of ProfytAI Pte. Ltd.. Last verified 2026-10-02. https://assessrlog.com/cmmc/objectives/real-time-malicious-code-scans-of-files-from-external-sources-as/
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