Adversaries may infect Siemens PLC project files (i.e., Step 7, WinCC, etc.) to achieve Execution, Persistence, and Lateral Movement objectives. Adversaries may modify an existing project file or bring their own project files into the environment.^[1]

The ability for an adversary to deploy an infected project file relies on access to a workstation with Siemens PLC programming software installed on it from which a program download can be performed.

References

1. Nicolas Falliere, Liam O Murchu, Eric Chien 2011, February W32.Stuxnet Dossier (Version 1.4) Retrieved November 17, 2024.

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