capstone
Unicorn Engine
Our great sponsors
capstone | Unicorn Engine | |
---|---|---|
7 | 14 | |
7,025 | 7,141 | |
1.7% | 1.9% | |
9.0 | 1.3 | |
7 days ago | 4 days ago | |
C | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
capstone
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Rise: Accelerate the Development of Open Source Software for RISC-V
Maybe then they can help us with the Capstone[1][2] disassembly engine auto-sync (automatic synchronization from the LLVM TableGen files) effort[3]. ARMv7, ARMv8/9, PowerPC are nearly finished, and MIPS in in near-term plans. Nobody stepped in for RISC-V yet.
[1] http://www.capstone-engine.org/
[2] https://github.com/capstone-engine/capstone
[3] https://github.com/capstone-engine/capstone/issues/2015
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How to make smaller C and C++ binaries
Bloaty is a nice tool.
When I worked on Matter a couple years ago, we had the problem that its backend http://www.capstone-engine.org/ did not support Xtensa, and produced some Python tools that could take output from bloaty or similar data from readelf or elftools, and produce several kinds of report.
https://github.com/project-chip/connectedhomeip/blob/master/...
- Capstone disassembly/disassembler framework: Core (Arm, Arm64, BPF, EVM, M68K, M680X, MOS65xx, Mips, PPC, RISCV, Sparc, SystemZ, TMS320C64x, Web Assembly, X86, X86_64, XCore) + bindings.
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Installing Triton in fresh linux VM step-by-step guide (hairpull-free edition)
$ git clone -b next https://github.com/capstone-engine/capstone $ cd capstone $ ./make.sh $ sudo ./make.sh install $ cd ..
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Solana is going to be the next rug pull - I'm a Solana developer and I've discovered a glaring vulnerability.
People already closing in: [Implement an eBPF decompiler/disassembler · Issue #838 · capstone-engine/capstone · GitHub](https://github.com/capstone-engine/capstone/issues/838)
- Capstone is a disassembly framework with the target of becoming the ultimate disasm engine for binary analysis and reversing in the security community.
Unicorn Engine
- Unicorn: Lightweight multi-platform, multi-architecture CPU emulator framework
- 86Box v4.0
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Show HN: Tetris, but the blocks are ARM instructions that execute in the browser
OFRAK Tetris is a project I started at work about two weeks ago. It's a web-based game that works on desktop and mobile. I made it for my company to bring to events like DEF CON, and to promote our binary analysis and patching framework called OFRAK.
In the game, 32-bit, little-endian ARM assembly instructions fall, and you can modify the operands before executing them on a CPU emulator. There are two segments mapped – one for instructions, and one for data (though both have read, write, and execute permissions). Your score is a four byte signed integer stored at the virtual address pointed to by the R12 register, and the goal is to use the instructions that fall to make the score value in memory as high as possible. When it's game over, you can download your game as an ELF to relive the glory in GDB on your favorite ARM device.
The CPU emulator is a version of Unicorn (https://www.unicorn-engine.org/) that has been cross-compiled to WebAssembly (https://alexaltea.github.io/unicorn.js/), so everything on the page runs in the browser without the need for any complicated infrastructure on the back end.
Since I've only been working on this for a short period of time leading up to its debut at DEF CON, there are still many more features I'd eventually like to implement. These include adding support for other ISAs besides ARM, adding an instruction reference manual, and lots of little cleanups, bug fixes, and adjustments.
My highest score is 509,644,979, but my average is about 131,378.
I look forward to feedback, bug reports, feature requests, and strategy discussions!
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It Takes 6 Days to Change 1 Line of Code
Entails hundreds of hours of single-stepping through that opcode in Linux kernel using an indirect operand pointing toward its own opcode (self-modifying code).
Even the extraordinaire Fabrice Bellard (author of QEMU) admitted that it is broke and did a total rewrite, which fixed tons of other issues.
https://github.com/unicorn-engine/unicorn/issues/364
- FOSS Simulator for debugging C code (even better if it supports some MCUs)
- Unicorn: Lightweight multi-platform, multi-architecture CPU emulation framework
- Unicorn - CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
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Vita3K android running Tales of Hearts R - A Glimpse of What's to come
Macdu (Vita3K dev) also stated that this game is CPU bound so they used a CPU emulator known as unicorn2 , this is also the reason for the slow speed
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QEMU Version 7.0.0 Released
This is how I found out a snippet of assembly code that can actually distinguished between a KVM hypervisor and most of today’s emulator.
https://github.com/unicorn-engine/unicorn/issues/364
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Top Python Tools for Malware Analysis. – PythonStacks
Unicorn is missing from that list.
The python CPU emulator with full program counter (PC) and general (and other CPU-specific) register set controls.
I use it to catch fileless malware in the second fastest dynamic manner. Also good for detecting Rowhammer/SPECTRE behaviors.
Disclaimer: one of the contributors and a contractor that frequently deploy this.
https://github.com/unicorn-engine/unicorn
What are some alternatives?
aya - Aya is an eBPF library for the Rust programming language, built with a focus on developer experience and operability.
QEMU - Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website.
ml-compiler-opt - Infrastructure for Machine Learning Guided Optimization (MLGO) in LLVM.
MicroPython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
convis
capstone - Capstone disassembly/disassembler framework: Core (Arm, Arm64, BPF, EVM, M68K, M680X, MOS65xx, Mips, PPC, RISCV, Sparc, SystemZ, TMS320C64x, Web Assembly, X86, X86_64, XCore) + bindings. [Moved to: https://github.com/capstone-engine/capstone]
bloaty - Bloaty: a size profiler for binaries
Reverse-Engineering-Tutorial - A FREE comprehensive reverse engineering tutorial covering x86, x64, 32-bit ARM & 64-bit ARM architectures.
liquidator - open source version of a liquidation bot running against solend
TinyVM - TinyVM is a small, fast, lightweight virtual machine written in pure ANSI C.
Triton - Triton is a dynamic binary analysis library. Build your own program analysis tools, automate your reverse engineering, perform software verification or just emulate code.
box86 - Box86 - Linux Userspace x86 Emulator with a twist, targeted at ARM Linux devices