Using Undocumented Hardware Performance Counters to Detect Spectre-Style Attacks
In this paper, we’ll first introduce our version of Spectre variant 4 with evasive changes that can bypass any detections using conventional cache miss, branch miss, and branch misprediction counters. We’ll then show how our model using select undocumented counters is able to detect this new edited variant, and how it is also able to detect a novel Spectre implementation submitted to Virus Total.