For developers using WSL, Docker, or Vagrant, a project folder might contain .ss/ as a mount point for ephemeral subsystems:
myapp/
Dockerfile
.ss/
var/ (bind-mounted container state)
logs/
This isolates mutable subsystem data from version-controlled source code. filedot ss folder
How does this folder compare to other hidden directories you might see? For developers using WSL, Docker, or Vagrant, a
| Folder Name | Typical Purpose | Safe to Delete? |
| :--- | :--- | :--- |
| filedot ss folder | Snapshots, sync state | Only if software is uninstalled |
| $RECYCLE.BIN | Windows Recycle Bin | Yes (empties trash) |
| System Volume Information | System restore points | Not recommended |
| .Trashes | macOS/Linux trash | Yes (from external drives) |
| found.000 | Disk error fragments | No, data recovery |
| .stfolder | Syncthing status | No (breaks sync) | For developers using WSL
Network logs showed the adversary performed a broad scan for exposed developer laptops with open sync ports. On one compromised machine they found the lingering “filedot ss” artifacts and used the contained URLs and tokens to enumerate and pull partial files from the service’s storage backend. These partial pulls exposed enough sensitive metadata—user IDs, project names, snippet contents—to accelerate a targeted credential-phishing campaign that later gained deeper access.