This article details how Huntress analysts investigated a Qilin ransomware incident using limited post-attack data sources, emphasizing the importance of correlating multiple clues to understand the attack. It highlights the challenges of delayed agent deployment and the value of cross-referencing logs, threat intelligence, and endpoint artifacts. #QilinRansomware #HuntressLabs
Keypoints
- Investigation began after the Huntress agent was installed on an endpoint following a ransomware infection.
- Analysts used limited data, such as antivirus alerts, Windows event logs, and PCA logs, to trace attacker activity.
- The threat actor installed rogue remote access tools and disabled Windows Defender to evade detection.
- Multiple data sources helped validate activity and understand that the attacker attempted to deploy malicious files post-incident.
- Cross-referencing logs and artifacts provides a comprehensive view of the attack, especially with delayed visibility.