General

occ (Nextcloud)

occ is Nextcloud's command-line administration tool. Administrators run it as the web server user to upgrade the instance, list and manage apps, and verify core and app files against Nextcloud's signed file lists with the integrity check commands.

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How to Check for Nextcloud Web Shells and Clean Up

How to check for Nextcloud web shells: inventory apps with occ, run integrity checks, find unexpected PHP files, search access logs, then rotate secrets.

intermediate 5 min read

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