a noticeable suspicious thing is a release file of the Minecraft resource pack Suspicious gravel and sand, made for Minecraft 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10. It was published on February 28, 2026 and is 1.3 MB in size. For the full description, screenshots and every other version, visit the Suspicious gravel and sand resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.