GitHub: add code of conduct, issue templates

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Matthijs Lavrijsen 2023-10-04 16:27:59 +02:00
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commit 375b677e4f
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11 changed files with 639 additions and 3 deletions

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.github/CODE_OF_CONDUCT.md vendored Normal file
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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, caste, color, religion, or sexual
identity and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the overall
community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or advances of
any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email address,
without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
mattiwatti@gmail.com.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series of
actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or permanent
ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within the
community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.1, available at
[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
Community Impact Guidelines were inspired by
[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
For answers to common questions about this code of conduct, see the FAQ at
[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
[https://www.contributor-covenant.org/translations][translations].
[homepage]: https://www.contributor-covenant.org
[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
[Mozilla CoC]: https://github.com/mozilla/diversity
[FAQ]: https://www.contributor-covenant.org/faq
[translations]: https://www.contributor-covenant.org/translations

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.github/ISSUE_TEMPLATE/bug_report.yml vendored Normal file
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name: Bug report
description: Report bugs or other issues
labels: ["bug"]
body:
- type: markdown
attributes:
value: Before filing this bug, [please check if it hasn't already been reported](https://github.com/Mattiwatti/EfiGuard/issues?q=is%3Aissue+label%3Abug). If it has, please add useful information to the existing issue instead.
- type: input
id: os
attributes:
label: Operating system
placeholder: Windows 11 x64 build 22621
validations:
required: true
- type: textarea
id: description
attributes:
label: Issue description
description: Briefly describe your issue here.
validations:
required: true
- type: textarea
id: repro
attributes:
label: Steps to reproduce
description: Describe in small and detailed steps how to reproduce the issue.
value: |
1.
2.
validations:
required: true
- type: textarea
id: logs
attributes:
label: Logs
description: If you can provide relevant logs (e.g. of `analyze -v`), please paste them here. The output of `EfiDSEFix -i` is also often helpful when diagnosing EfiGuard issues.
placeholder: Paste logs here
render: shell
validations:
required: false
- type: textarea
id: attachments
attributes:
label: Attachments
description: If you can provide crash dumps, photos or screenshots that may help to investigate the issue, please add them here.
placeholder: Drag and drop files here
validations:
required: false

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blank_issues_enabled: true

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name: Feature request
description: Suggest features, modifications or ideas
labels: ["feature"]
body:
- type: markdown
attributes:
value: Before filing this request, [please check if it hasn't already been suggested before](https://github.com/Mattiwatti/EfiGuard/issues?q=is%3Aissue+label%3Afeature). If it has, please add to the existing issue instead.
- type: textarea
id: description
attributes:
label: Feature description
description: Briefly describe your idea, suggestion or proposed feature.
validations:
required: true
- type: textarea
id: implementation
attributes:
label: Implementation
description: Thoughts on possible implementation details go here (optional).
placeholder: Suggest how to implement the feature.
validations:
required: false

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.github/ISSUE_TEMPLATE/question.yml vendored Normal file
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name: Question
description: Questions about EfiGuard
labels: ["question"]
body:
- type: textarea
id: description
attributes:
label: Question description
description: What is your question? Please make sure it is related to EfiGuard.
placeholder: Ask your question here.
validations:
required: true

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@ -8,14 +8,14 @@ EfiGuard is a portable x64 UEFI bootkit that patches the Windows boot manager, b
- Works passively: the driver does not load or start the Windows boot manager. Instead it acts on a load of `bootmgfw.efi` by the firmware boot manager via the boot selection menu or an EFI application such as the loader. If a non-Windows OS is booted, the driver will automatically unload itself.
- Supports four-stage patching for when `bootmgfw.efi` starts `bootmgr.efi` rather than `winload.efi`. This is the case when a WIM file is loaded to boot WinPE, Windows Setup or Windows Recovery mode.
- Graceful recovery: in case of patch failure, the driver will display error information and prompt to continue booting or to reboot by pressing ESC. This is true even up to the final kernel patch stage, because the last patch stage happens before `ExitBootServices` is called. Many UEFI Windows bootkits hook `OslArchTransferToKernel` which, while easy to find by pattern matching, is a function that executes in protected mode after `ExitBootServices`. This means no boot services are available to tell the user that something went wrong.
![bsod](Misc/BSOD.png)
![bsod](.github/img/BSOD.png)
Simulated patch failure with error information
- Debuggable: can output messages to a kernel debugger and to the screen (albeit buffered) during the kernel patching stage, and to a serial port or unbuffered to the screen during the boot manager and boot loader patching stages. If the driver is compiled with PDB debug information, it is possible to load the debug symbols at any point after HAL initialization by specifying the virtual DXE driver base and debugging it as you would a regular NT driver.
- DSE bypasses: available as either a straightforward [UPGDSED](https://github.com/hfiref0x/UPGDSED)-style DSE disable at boot time or as a hook on the `SetVariable()` EFI runtime service. The latter serves as an arbitrary kernel mode read/write backdoor that can be called from Windows using `NtSetSystemEnvironmentValueEx` and allows setting `g_CiEnabled`/`g_CiOptions` to the desired value. A small DSEFix-style application named `EfiDSEFix.exe` is provided that can be used to do this. It is also possible to leave DSE enabled and to disable only PatchGuard. The loader will use the `SetVariable` hook method by default, due to the fact that some anti-cheat and anti-virus programs do not understand the difference between cheats or malware and self-signed drivers in general and target the UPGDSED fix.
- Supports on-disk modified kernels and boot loaders by patching `ImgpValidateImageHash` at every stage as well as `ImgpFilterValidationFailure`, which may silently rat out some classes of violations to a TPM or the SI log file.
- Allows Secure Boot to work with Windows 7 (not a joke!). Windows 7 itself is oblivious to Secure Boot as it does not support it, or (<a href="https://msdn.microsoft.com/en-us/ie/dn938339(v=vs.60)">officially</a>) even booting without CSM. This is useful for people who want to use Windows 7 on a locked down device that requires WHQL Secure Boot. Wiki entry on how to get this to work [here](https://github.com/Mattiwatti/EfiGuard/wiki/Secure-boot-on-Windows-7).
![win7_secureboot](Misc/Win7SecureBoot.png)
![win7_secureboot](.github/img/Win7SecureBoot.png)
[WinObjEx64](https://github.com/hfiref0x/WinObjEx64) on Windows 7 with Secure Boot enabled
@ -60,7 +60,7 @@ The output binary `EfiDSEFix.exe` will be in `Application/EfiDSEFix/bin`.
The Visual Studio solution also includes projects for `EfiGuardDxe.efi` and `Loader.efi` which can be used with [VisualUefi](https://github.com/ionescu007/VisualUefi), but these projects are not built by default as they will not link without additional code, and the build output will be inferior (bigger) than what EDK2 produces. `Loader.efi` will not link at all due to VisualUefi missing UefiBootManagerLib. These project files are thus meant as a development aid only and the EFI files should still be compiled with EDK2. To set up VisualUefi for this purpose, clone the repository into `workspace/VisualUefi` and open `EfiGuard.sln`.
# Architecture
![architecture](Misc/EfiGuard.svg)
![architecture](.github/img/EfiGuard.svg)
While EfiGuard is a UEFI bootkit, it did not start out as one. EfiGuard was originally an on-disk patcher running on NT (similar to [UPGDSED](https://github.com/hfiref0x/UPGDSED)), intended to test the viability of a disassembler-based aproach, as opposed to using PDB symbols and version-specific signatures. [PatchNtoskrnl.c](EfiGuardDxe/PatchNtoskrnl.c) still looks very much like this original design. Only after this approach proved successful, with no modifications to code needed in over a year of Windows updates, did UEFI come into the picture as a way to further improve capabilities and ease of use.
Some of the benefits provided by a bootkit approach include: