Adversaries may manipulate application software prior to receipt by a final consumer for the purpose of data or system compromise. Supply chain compromise of software can take place in a number of ways, including manipulation of the application source code, manipulation of the update/distribution mechanism for that software, or replacing compiled releases with a modified version.
Targeting may be specific to a desired victim set or may be distributed to a broad set of consumers but only move on to additional tactics on specific victims.(Citation: Avast CCleaner3 2018)(Citation: Command Five SK 2011)
View in MITRE ATT&CK®| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| intel-txt | Intel Trusted Execution Technology | Win 11, System Guard | T1195.002 | Compromise Software Supply Chain |
Comments
System Guard Secure Launch uses a technology called Dynamic Root of Trust Measurement (DRTM). It leverages Intel PTT (TPM) and TXT to provide secure methods to boot a system and verify the integrity of the operating system and loading mechanisms. System Guard Secure Launch ensures that the system can freely boot into untrusted code initially, but shortly after launches the system into a trusted state by taking control of all CPUs and forcing them down a well-known and measured code path. This has the benefit of allowing untrusted early code to boot the system but then being able to securely transition into a trusted and measured state. The ability to transition in real-time to a secure state justified the score of significant for this feature and its corresponding protection (E.g., bootkit, rootkit, firmware corruption, etc.).
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