Decrypt FairPlay encrypted binaries on macOS when SIP-enabled.
By mapping an executable as r-x and then using mremap_encrypted on the encrypted page(s) and then writing them back out to disk, you can fully decrypt FairPlay binaries.
This was discovered independently when analyzing kernel sources, but it appears that the technique was first introduced on iOS (but now works on macOS): https://github.com/JohnCoates/flexdecrypt
Thanks to apple-tools.
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When trying to decrypt the latest eBay.app/eBay executable from the app store, I get the following:
127 Dec 31, 2022
12 May 6, 2022
2 May 29, 2022
1 Dec 18, 2021
5 Sep 3, 2022
23 Dec 21, 2022
39 Dec 17, 2022
2.9k Jan 7, 2023
14 Nov 2, 2022
1 Dec 6, 2021
5 Apr 5, 2022
490 Dec 14, 2022
5 Jul 5, 2022
23 Jan 8, 2023
233 Jan 7, 2023
382 Dec 27, 2022
374 Dec 30, 2022
16 Jul 14, 2021
173 Dec 7, 2022
$ ./unfairplay Payload/eBay.app/eBay eBay-decrypted
mremap_encrypted: Cannot allocate memory
Please wait 1 second and try it again.
Succeeded in decrypting the binary.
Even after retrying several times, it still fails. Any ideas? Note that I'm trying to decrypt this iOS app from my arm mac.
vector2 Encrypt and Decrypt PreView ▄▀▀▄ ▄▀▀▄ ▄▀▀█▄▄▄▄ ▄▀▄▄▄▄ ▄▀▀▀█▀▀▄ ▄▀▀▀▀▄ ▄▀▀▄▀▀▀▄ █ █
Endecryptor Simple Encrypt And Decrypt string using C. How To install Requirements Of Endecryptor sudo apt update -y;sudo apt auto-remove -y;sudo apt
A tool to decrypt Call of Duty: World War II's Fast File. This tool was made to allow people making HUDs in Call of Duty: Black Ops III's mod tools to aquire the assets needed to port HUDs from Call of Duty: World War II.
FCrack is a command-line tool designed to brute force encrypted files like zip, 7z, rar, pdf, gpg etc.
UnrealKey UnrealKey is a tool for automatically finding the AES-256 decryption keys for Unreal Engine 4 encrypted pak files.
Fully Homomorphic Encryption (FHE) This repository contains open-source libraries and tools to perform fully homomorphic encryption (FHE) operations o
A custom FUSE-based filesystem that distributes encrypted shards of data across machines on a local network, allowing those files to be accessible from any machine.
Huan Huan is an encrypted PE Loader Generator that I developed for learning PE file structure and PE loading processes. It encrypts the PE file to be
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With Apple transition from Intel to Apple Silicon (arm64) CPUs, developers have to deal with Universal binaries in macOS (again) in order to support t
12 May 6, 2022
1 Dec 18, 2021
5 Sep 3, 2022
23 Dec 21, 2022
39 Dec 17, 2022
2.9k Jan 7, 2023
14 Nov 2, 2022
490 Dec 14, 2022
134 Nov 24, 2022
60 Dec 25, 2022