Evasive Tactics: Taidoor « Threat Research | FireEye Inc

Taidoor is a long-running espionage malware whose operators have evolved delivery and C2 techniques, including a downloader that fetches encrypted payloads from Yahoo Blogs and shifted C2 paths, as described in a detailed 2013 analysis. The report documents traditional delivery, new variants, associated infrastructure, and linked malware families with a focus on campaigns targeting Taiwan.