Zygisk NoHello

This module currently focuses to hide root & zygisk from apps.

Updates will gradually implements changes and fixes.

About The Project

Using the release build is recommended over the debug build. Only use debug builds if you are going to make a bug report.

Usage

KernelSU & KernelSU Next users:

  1. Install ZygiskNext or ReZygisk.
  2. Make sure the unmount setting is enabled for the target app in the Manager.
  3. Disable Umount modules in settings for Manager (if exists).
  4. Disable Enforce DenyList in ZygiskNext/ReZygisk settings if there is one.

APatch users:

  1. Install ZygiskNext or ReZygisk.
  2. Make sure the unmount setting is enabled for the target app in the Manager.
  3. Disable Enforce DenyList in ZygiskNext/ReZygisk settings if there is one.

Magisk users:

  1. Update your Magisk to 28.0 or newer for better hiding capabilities. (optional)
  2. Turn on Zygisk in Magisk settings (unrecommended) or install ZygiskNext/ReZygisk.
  3. Turn off Enforce DenyList in Magisk settings.
  4. Disable Enforce DenyList in ZygiskNext/ReZygisk settings if there is one. (if installed)
  5. Add the target app to the deny list unless you’re using a Magisk fork with a white list instead.

Whitelisting (0.0.4+)

You can set the working mode to whitelist (instead of the default blacklist) by creating an empty regular file /data/adb/nohello/whitelist.

[!WARNING] Using Mount Rule System with whitelist, can cause severe overheating & performance issues, due to how MRS being evaluated each time a process spawns.

This can be solved if you make NoHello evaluates Mount Rule System per boot/companion instance, by creating an empty regular file /data/adb/nohello/umount_persist/data/adb/nohello/umount_persists

Mount Rule System

Since version 0.0.5, NoHello introduces Mount Rule System.
This allows users to define rules that control how mount points are evaluated for auto-unmounting.
Rules are fully configurable and match based on mount point properties like root path, mount path, filesystem type, or source.
MountRules can be customized via /data/adb/nohello/umount.

Rule Format

A rule is made up of sections, each consisting of a keyword, followed by a list of values enclosed in {}:

<keyword>{value1>value2>}

Valid keywords are:

KeywordMatches againstSupports WildcardsDescription
rootRoot path of the mountYes (*, escape by \*)Root of the mount in /proc/self/mountinfo
pointMount point pathYes (*, escape by \* only at the beginning & ending)Where the filesystem is mounted
fsFilesystem typeNoMatches exact filesystem type, e.g. ext4, erofs, etc
sourceSource device or fileYes (*, escape by \*)e.g., /dev/block/xyz, magisk, etc

Example Rules

Match all tmpfs filesystems mounted under /data/adb:

fs{"tmpfs"}point{"/data/adb/*"}

Match anything mounted from a tmpfs source:

source{"tmpfs"}

Match a specific mount path exactly:

point{"/mnt/specific/path"}

Match any source ending with data:

source{"*data"}

Match root path starting with /acct and fs type cgroup:

root{"/acct*"}fs{"cgroup"}

Quoting Values

You can quote values with single or double quotes:

point{"/mnt/withspace"/custom\path'}

You may escape characters like *, {, }, and " using backslashes (\) if needed.

Wildcard Behavior

Wildcards are supported only in root, point, and source. The supported patterns are:

[!NOTE]

  • You can define multiple rules, each as a separate line.
  • All rules are evaluated independently.
  • Matching is case-sensitive and optimized for performance.

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag “enhancement”. Don’t forget to give the project a star! Thanks again!

  1. Fork the Project.
  2. Create your Feature Branch (git checkout -b feature/FeatureName)
  3. Commit your Changes (git commit -m 'Add some FeatureName')
  4. Push to the Branch (git push origin feature/FeatureName)
  5. Open a Pull Request.

Acknowledgement

LICENSE

This project is licensed under the MIT License.

Link

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