MITRE ATT&CK Enterprise
T1056.003
enhancement

Web Portal Capture

Parent: T1056

Description

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](https://attack.mitre.org/techniques/T1133) and [Valid Accounts](https://attack.mitre.org/techniques/T1078) or as part of the initial compromise by exploitation of the externally facing web service.(Citation: Volexity Virtual Private Keylogging)

Mapped SPARTA techniques

No techniques mapped to this control.

Cross-framework references

Relationships published by the source frameworks themselves, reproduced here with attribution. They are not SafeMode Space mappings and carry no confidence rating of ours.

Cite as SafeMode Space, mitre-attack-enterprise T1056.003.

Built 2026-07-25 from 216 techniques, 334 regulation articles, 125 ENISA controls, 2,610 framework controls, and 90 countermeasures.