= Rehosting Basics

---- dataentry asm22workshop ----
Titel          : Rehosting Basics
Workshopleiter : Rob
Wann           : Samstag, 12:00-14:00
Wo             : Sprachschule 1
Dauer          : 2h
----


== Description
Rehosting is a technique to dynamically execute an extracted firmware blob.
Infamously used by Frankenstein(https://www.usenix.org/conference/usenixsecurity20/presentation/ruge). Otherwise, this is used to get those 31337 0-Days in firmwares.
I intend to cover:
-What Rehosting actually entails
- Short Intro what rehosting is (including an intro to Unicorn-Engine+Avatar2) 
- some helpfull hints for your reverse engineering adventures
----
 you can get an overview here:https://dl.acm.org/doi/pdf/10.1145/3433210.3453093
----

- Some Code-Snippets for getting started with Unicorn-Engine
- Experiment:We try to rehost some binary from the Circuit Playground, is not yet properly prepared besides a skeleton
- We try to rehost sth. else


== Teilnahmevoraussetzungen
* Talk language: German/Englisch
* Assembly Knowledge
* Python Knowledge
* have some Decompiler installed (e.G. Ghidra)

== bring
* Laptop (install unicorn-engine2 and keystone-engine )
* if you have one: Circuit Playground with ARM chip

== Material / Unkosten
keine

== Teilnehmer
Max. 10

^ Nummer  ^ Wer          ^
| 1       | Hauke        |
| 2       | Lena         |
| 3       | sc           |
| 4       | Christopher  |
| 5       |              |
| 6       |              |


== Resources
https://gitlab.muc.ccc.de/rob/rehosting_basics

git clone https://gitlab.muc.ccc.de/rob/rehosting_basics.git