How can the Windows Troubleshooting Platform be abused in penetration testing?

The Windows Troubleshooting Platform (WTP) allows developers to create troubleshooting packs (.diagcab files) that run detection, resolution, and verification scripts with elevated privileges. Attackers and penetration testers can embed malicious payloads into these scripts, tricking users into executing the pack via phishing emails. Because .diagcab files are uncommon and appear legitimate (often signed with a custom certificate), users are likely to let their guard down, giving the attacker direct administrator access. For more details, see the full analysis in Application Techniques of Troubleshooting Platform in Penetration Testing.