search

P1sec / hermes-dec

A reverse engineering tool for decompiling and disassembling the React Native Hermes bytecode
GNU Affero General Public License v3.0
482 stars 51 forks source link

Opcode "0xf6" #2

Closed Haniamin90 closed 11 months ago

Haniamin90 commented 1 year ago

image

p1-mmr commented 1 year ago

Hello,

Can your please share your sample Hermes .bundle file on this issue, or at image if you wish to keep it private?

Thank you!

Haniamin90 commented 1 year ago

Hello,

bundle sent to mentioned email.

Thanks

p1-mmr commented 1 year ago

Hello,

Your sample was produced using a development version of the React Native framework, as it seems to present bytecode version 85.

React Native produced bytecode files bearing version 85 on two occasions, in July 2021 but this version code was left only for a few hours (https://github.com/facebook/hermes/commit/1cc6e722ea9dd9f53def90bb88fbefeca99739b9) before being incremented (https://github.com/facebook/hermes/commit/c4f2fc3f499f7891958b9e6d7ab39fcb6ead93c8) and decremented back (https://github.com/facebook/hermes/commit/1921644140739fedf6382fac1279036d11c4e931), and in March 2022 (https://github.com/facebook/hermes/commit/b74eb2d5bff8ffbfa6914746261c4efd2c4223c5) where it stayed for three months (https://github.com/facebook/hermes/commit/b8235156c0bfb0eea550243e67c5018661ff3185).

I think that I should adapt hermes-dec for supporting the most recent intermediary versions of the Hermes bytecode in order to provide the ability of analyzing certain applications produced using development versions of React Native. I should look at this soon.

Regards,