Search the Community

SILENTTRINITY An asynchronous post-exploitation agent powered by Python, IronPython, C# and .NET's DLR Requirements Server requires Python >= 3.7 SILENTTRINITY C# implant requires .NET >= 4.5 How it works Notes .NET runtime support The implant needs .NET 4.5 or greater due to the IronPython DLLs being compiled against .NET 4.0, also there is no ZipArchive .NET library prior to 4.5 which the implant relies upon to download the initial stage containing the IronPython DLLs and the main Python code. Reading the source for the [Hidden Content] it seems like we can get around the first issue by directly generating IL code through IKVM (I still don't understand why this works). However this would require modifying the compiler to generate a completely new EXE stub (definitely feasible, just time consuming to find the proper IKVM API calls). C2 Comms Currently the implant only supports C2 over HTTP 1.1, .NET 4.5 seems to have a native WebSocket library which makes implementing a WS C2 channel more than possible. HTTP/2 client support for .NET's HttpClient API is in the works, just not yet released. The implant and server design are very much "future proof" which should make implementing these C2 Channels pretty trivial when the time comes. COM Interop [Hidden Content] Python Standard Library We technically could load/use IronPython's stdlib instead of calling .NET APIs but this would require writing some "magic" dependency resolving code. Possibly could modify [Hidden Content] to do this automagically. Inject into unmanaged process [Hidden Content] If you need some help setting up your environment. Reporting issues Reporting any issue will be appreciated, but please, feel free to use this [Hidden Content]. Source & Ref. [hide][Hidden Content]]