T1020 Automated Exfiltration

This diagnostic statement protects against Automated Exfiltration through the use of failsafes, backup facilities, disaster recovery, and resilience strategies including resumption of critical services.

This Diagnostic Statement describes mitigations related to protecting data-in-use, mentioning encryption, access control methods and authentication. Using encryption for data-in-use, alongside other safeguards such for restricting exfiltration of sensitive data aid with mitigating collection and exfiltration threats.

This diagnostic statement protects against Automated Exfiltration through the use of revocation of keys and key management. Employing key protection strategies for key material used in identity management and authentication processes over networks, limitations to specific accounts along with access control mechanisms provides protection against automated exfiltration.

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.

Cloud IDS spyware signatures are able to detect data exfiltration attempts over command and control communications, which is often used by adversaries to compromise sensitive data. Although there are ways an attacker could still exfiltrate data from a compromised system, this technique was scored as significant based on Cloud IDS's advanced threat detection technology which continually updates to detect against the latest known variations of these attacks.

Google Security Ops is able to trigger an alert based off suspicious sytem processes, such as using bitsadmin to automatically exfiltrate data from Windows machines (e.g., ".*\\bitsadmin\.exe"). This mapping is scored as minimal based on low or uncertain detection coverage factor for this technique. https://github.com/chronicle/detection-rules/blob/main/soc_prime_rules/threat_hunting/windows/data_exfiltration_attempt_via_bitsadmin.yaral

The following GuardDuty finding type flags events that may indicate adversaries attempting to exfiltrate data, such as sensitive documents, through the use of automated processing after being gathered during Collection. Behavior:EC2/TrafficVolumeUnusual Exfiltration:S3/MaliciousIPCaller Exfiltration:S3/ObjectRead.Unusual PenTest:S3/KaliLinux PenTest:S3/ParrotLinux PenTest:S3/PentooLinux UnauthorizedAccess:S3/MaliciousIPCaller.Custom UnauthorizedAccess:S3/TorIPCaller

This control provides partial coverage for this technique's only sub-technique, but without specific coverage for its procedures, resulting in an overall score of Minimal.

This control provides partial coverage for this technique's only sub-technique, but without specific coverage for its procedures, resulting in an overall score of Minimal.