T1030 Data Transfer Size Limits

An adversary may exfiltrate data in fixed size chunks instead of whole files or limit packet sizes below certain thresholds. This approach may be used to avoid triggering network data transfer threshold alerts.

View in MITRE ATT&CK®

CRI Profile Mappings

Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
DE.AE-02.01 Event analysis and detection Mitigates T1030 Data Transfer Size Limits
Comments
This diagnostic statement provides for implementation of methods to block similar future attacks via security tools such as antivirus and IDS/IPS to provide protection against threats and exploitation attempts.
References
    DE.CM-01.03 Unauthorized network connections and data transfers Mitigates T1030 Data Transfer Size Limits
    Comments
    This diagnostic statement provides protection from Data Transfer Size Limits by using tools to detect and block the use of unauthorized devices and connections to prevent abuse by adversaries.
    References
      PR.DS-01.03 Removable media protection Mitigates T1030 Data Transfer Size Limits
      Comments
      This diagnostic statement focuses on restricting the use of removable media devices (e.g., USB drives, CDs, DVDs) to prevent unauthorized access, data leakage, or malicious activity.
      References
        DE.CM-01.01 Intrusion detection and prevention Mitigates T1030 Data Transfer Size Limits
        Comments
        Network intrusion detection and prevention systems that use network signatures to identify traffic for specific adversary malware can be used to mitigate some obfuscation activity at the network level.
        References
          PR.IR-04.01 Utilization monitoring Mitigates T1030 Data Transfer Size Limits
          Comments
          This diagnostic statement describes how the organization establishes and manages baseline measures of network activity. Supported by network monitoring tools and other controls to detect events and identify incidents. Mitigating mechanisms may include: Data Loss Prevention (DLP); Filtering Network Traffic; Limit Network Traffic; Network Intrusion Prevention Systems (NIPS); and Network Segmentation for these type of network-based techniques.
          References
            PR.IR-01.03 Network communications integrity and availability Mitigates T1030 Data Transfer Size Limits
            Comments
            This diagnostic statement protects against Data Transfer Size Limits through the use of secure network configurations, architecture, implementations of zero trust architecture, and segmentation.
            References

              NIST 800-53 Mappings

              Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
              CA-07 Continuous Monitoring mitigates T1030 Data Transfer Size Limits
              CM-06 Configuration Settings mitigates T1030 Data Transfer Size Limits
              SI-03 Malicious Code Protection mitigates T1030 Data Transfer Size Limits
              CM-02 Baseline Configuration mitigates T1030 Data Transfer Size Limits
              SI-04 System Monitoring mitigates T1030 Data Transfer Size Limits
              AC-04 Information Flow Enforcement mitigates T1030 Data Transfer Size Limits
              SC-07 Boundary Protection mitigates T1030 Data Transfer Size Limits

              VERIS Mappings

              Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
              action.malware.variety.Export data Export data to another site or system related-to T1030 Data Transfer Size Limits
              attribute.confidentiality.data_disclosure None related-to T1030 Data Transfer Size Limits