T1020.001 Traffic Duplication

sub-techniqueEnterprise

Adversaries may leverage traffic mirroring in order to automate data exfiltration over compromised infrastructure. Traffic mirroring is a native feature for some devices, often used for network analysis. For example, devices may be configured to forward network traffic to one or more destinations for analysis by a network analyzer or other monitoring device. Adversaries may abuse traffic mirroring to mirror or redirect network traffic through other infrastructure they control. Malicious modifications to network devices to enable traffic redirection may be possible through ROMMONkit or Patch System Image. Many cloud-based environments also support traffic mirroring. For example, AWS Traffic Mirroring, GCP Packet Mirroring, and Azure vTap allow users to define specified instances to collect traffic from and specified targets to send collected traffic to. Adversaries may use traffic duplication in conjunction with Network Sniffing, Input Capture, or Adversary-in-the-Middle depending on the goals and objectives of the adversary.

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platforms

Platforms this applies to.

Network DevicesIaaS
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tactics

ATT&CK tactics this technique serves.

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sub-technique of

The broader entity this sits under.

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mitigations

ATT&CK mitigations that reduce this.

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detected by (2)

Data components that detect this.

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NIST CSF 2.0 — areas of relevance (Protect / Detect)

NIST CSF 2.0 areas this most relates to (evidence-ranked).

Derived from MITRE CTID (Apache-2.0) and the NIST 800-53 ↔ CSF crosswalk (public domain). Indicative relevance along the Protect/Detect axis — not a compliance assessment or coverage claim.

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groups (1)

Threat groups associated with this.

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source

Where this definition is published.