In 2019, the world witnessed a sophisticated supply chain attack orchestrated by APT41, a notorious Chinese threat group. This operation compromised ASUS software updates, affecting millions of users. However, hidden within this mass distribution was a surgical strike aimed at 600 specific MAC addresses. As part of a cybersecurity operation team, your mission is to dissect this attack, uncover the methods used, and identify the targeted victims. This scenario will test your threat hunting and analytical skills in a real-world context.