T1056.003 Web Portal Capture

sub-techniqueEnterprise

Adversaries may install code on externally facing portals, such as a VPN login page, to capture and transmit credentials of users who attempt to log into the service. For example, a compromised login page may log provided user credentials before logging the user in to the service. This variation on input capture may be conducted post-compromise using legitimate administrative access as a backup measure to maintain network access through External Remote Services and Valid Accounts or as part of the initial compromise by exploitation of the externally facing web service.

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platforms

Platforms this applies to.

LinuxmacOSWindows
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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 (3)

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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mitigating controls (7)

Security controls that mitigate this.

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groups (2)

Threat groups associated with this.

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software (2)

Malware and tools associated with this.

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source

Where this definition is published.