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https://github.com/nettitude/Aladdin
https://github.com/nettitude/Aladdin
Last synced: about 2 months ago
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- Host: GitHub
- URL: https://github.com/nettitude/Aladdin
- Owner: nettitude
- License: bsd-3-clause
- Created: 2023-01-26T08:23:36.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2023-10-22T09:15:19.000Z (11 months ago)
- Last Synced: 2024-05-11T09:35:13.403Z (4 months ago)
- Language: C#
- Size: 46.9 KB
- Stars: 205
- Watchers: 9
- Forks: 15
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-rainmana - nettitude/Aladdin - (C# #)
README
# Aladdin
```
.-.
[.-''-.,
| //`~\)
(<| 0\0|>_
";\ _"/ \\_ _,
__\|'._/_ \ '='-,
/\ \ || )_///_\>>
( '._ T |\ | _/),-'
'. '._.-' /'/ |
| '._ _.'`-.._/
,\ / '-' |/
[_/\-----j
_.--.__[_.--'_\__
/ `--' '---._
/ '---. -'. .' _.-- '.
\_ '--.___ _;.-o /
'.__ ___/______.__8----'
c-'----'
Lefty @lefterispan - Nettitude Red Team - 2022 / 2023
```
# About
Aladdin is a payload generation technique based on the work of James Forshaw (@tiraniddo) that allows the deseriallization of a .NET payload and execution in memory. The original vector was documented on https://www.tiraniddo.dev/2017/07/dg-on-windows-10-s-executing-arbitrary.html.
By spawning the process `AddInProcess.exe` with arguments ```/guid:32a91b0f-30cd-4c75-be79-ccbd6345de99``` and ```/pid:```, the process will start a named pipe under `\\.\pipe\32a91b0f-30cd-4c75-be79-ccbd6345de99` and will wait for a .NET Remoting object. If we generate a payload that has the appropiate packet bytes required to communicate with a .NET remoting listener we will be able to trigger the ActivitySurrogateSelector class from System.Workflow.ComponentModel. and gain code execution.
Originally, James Forshaw released a POC at ```https://github.com/tyranid/DeviceGuardBypasses/tree/master/CreateAddInIpcData```. However this POC will fail on recent versions of Windows since Microsoft went ahead and patched the vulnerable System.Workflow.ComponentModel (https://github.com/microsoft/dotnet-framework-early-access/blob/master/release-notes/NET48/dotnet-48-changes.md).
Nick Landers (@monoxgas) however, identified a way to disable the check that Microsoft introduced and wrote a detailed article at https://www.netspi.com/blog/technical/adversary-simulation/re-animating-activitysurrogateselector/ . The bypass is documented at https://github.com/pwntester/ysoserial.net/pull/41 .
Aladdin is a payload generation tool, which using the specific bypass as well as the necessary header bytes of the .NET remoting protocol is able to generate initial access payloads that abuse the `AddInProcess` as originally documented.
The provided templates are:
* HTA
* VBA
* JS
* CHM
## Notes
In order for the attack to be successfull the .NET assembly must contain a single public class with an empty constructor to act as the entry point during deserialization. An example assembly has been included in the project.
```
public class EntryPoint {
public EntryPoint() {
MessageBox.Show("Hello");
}
}
```
## Usage
```
Usage:
-w, --scriptType=VALUE Set to js / hta / vba / chm.
-o, --output=VALUE The generated output, e.g: -o
C:\Users\Nettitude\Desktop\payload
-a, --assembly=VALUE Provided Assembly DLL, e.g: -a
C:\Users\Nettitude\Desktop\popcalc.dll
-h, --help Help
```
## OpSec
* The user supplied .NET binary will be executed under the `AddInProcess.exe` that gets spawned from the HTA / JS payload. The spawning of the processes currently happens using the 9BA05972-F6A8-11CF-A442-00A0C90A8F39 COM object (https://dl.packetstormsecurity.net/papers/general/abusing-objects.pdf) which will launch the process as a child of `Explorer.exe` process.
* The GUID supplied in the process parameters of `AddInProcess.exe` can be user controlled. At the moment the guid is hardcoded in the template and the code.
* CHM executes the JScript through XSLT transformation
## Defensive Considerations
* `Addinprocess.exe` will always launch with `/guid` and `/pid`. Baseline your environment for legitimate uses - monitor the rest
## Useful References:
* https://www.tiraniddo.dev/2017/07/dg-on-windows-10-s-executing-arbitrary.html
* https://www.netspi.com/blog/technical/adversary-simulation/re-animating-activitysurrogateselector/
## Readme / Credits
Code is based on the following repos:
* https://github.com/tyranid/DeviceGuardBypasses/tree/master/CreateAddInIpcData
* https://github.com/pwntester/ysoserial.net
Shouts to:
* @m0rv4i for helping with C# nuances
* @ace0fspad3s for troubleshooting
* @ Nettitude RT for being awesome