GhostTree Attack Abused Recursive Windows Junctions to Hide Malware
Summary
The GhostTree attack technique leverages recursive NTFS junctions in Windows to create an enormous number of valid file paths, potentially overwhelming and stalling Microsoft Defender's folder scans. This allows malware to remain undetected by security software by hiding within the vast, unsearched directory structures.
IFF Assessment
This technique evades detection by security software, making it harder for defenders to identify and remove threats.
Defender Context
Defenders should be aware of advanced file hiding techniques like GhostTree that can bypass standard scanning mechanisms. Monitoring for unusual file system activity, excessive recursion, and anomalous process behavior during scans could be crucial for early detection. This highlights the ongoing arms race between malware authors and security solutions, requiring continuous updates and adaptive defense strategies.