j/MicroCorruption
1
0
Fork 0
mirror of https://git.soft.fish/val/MicroCorruption.git synced 2024-11-22 11:55:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Hollywood: Add first impressions (yikes!)

Browse Source
This commit is contained in:
Val 2023-03-01 23:43:02 -06:00
parent 424693f9e6
commit 6e9017393b
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
19-Hollywood/notes.md
View File

@ -0,0 +1,14 @@
# Chernobyl
### First impressions:
- Location-independent (my god these relative jumps)
- Copies itself around in memory
- Tries to be cheeky, and overwrites the original memory
- Sucks for it, my disassembler is so bad the instructions are wrong anyway
- A top-down disassembly is not possible here.
- Does long jumps by calculating large pc-relative offsets, pushing pc, and BR'ing them
- Never used Ghidra before, but it really doesn't like this. It crashed so hard.
- Decrypts_one_byte a lot -- and there's a blob of garbage in RAM. How fun.
- Do I need to find an inverse of the encryption algorithm?
#### TL;DR: Everybody knows it sucks