Team A and Team B: Sunburst, Teardrop and Raindrop
infonews
security
Source: Embrace The RedFebruary 2, 2021
Summary
Microsoft analyzed the Sunburst attack (a major 2020 breach targeting SolarWinds software) and found that attackers used Cobalt Strike (a tool for command and control, letting attackers remotely direct compromised systems) alongside custom modifications to hide their backdoors in software. The attackers made each compromised system unique with different names and folder locations to avoid detection.
Classification
Attack SophisticationModerate
Original source: https://embracethered.com/blog/posts/2021/sunburst-team-a-team-b/
First tracked: February 12, 2026 at 02:20 PM
Classified by LLM (prompt v3) · confidence: 95%