QuarkslaB Dynamic binary Instrumentation (QBDI) is a modular, cross-platform and cross-architecture DBI framework. It aims to support Linux, macOS, Android, iOS and Windows operating systems running on x86, x86-64, ARM and AArch64 architectures. Information about what is a DBI framework and how QBDI works can be found in the user documentation introduction (Introduction).
QBDI modularity means it doesn’t contain a preferred injection method and it is designed to be
used in conjunction with an external injection tool. QBDI includes a tiny (
Linux and macOS injector for dynamic executables (QBDIPreload), which acts as the foundation for our
Python bindings (pyQBDI).
QBDI is also fully integrated with Frida, a reference dynamic instrumentation toolkit,
allowing anybody to use their combined powers.
x86-64 support is mature (even if SIMD memory access are not yet reported). ARM architecture is a work in progress but already sufficient to execute simple CLI program like ls or cat. x86 and AArch64 are planned, but currently unsupported.
A current limitation is that QBDI doesn’t handle signals, multithreading (it doesn’t deal with new threads creation) and C++ exception mechanisms. However, those system-dependent features will probably not be part of the core library (KISS), and should be integrated as a new layer (to be determined how).
|CPU||Operating Systems||Execution||Memory Access Information|
|x86-64||Linux, macOS, Windows||Supported||Partial (only non SIMD)|
|ARM||Linux, Android, iOS||Partial||Unsupported|
|x86||Linux, macOS, Windows||Unsupported||Unsupported|
2018-03-22 Charles HUBAIN <firstname.lastname@example.org>
- Version 0.6.1
- Fixing a performance regression with the addCodeAddrCB (#42): Since 0.6, this API would trigger a complete cache flush forcing the engine to regenerate all the instrumented code after each call. Since this API is used inside VM:run(), this had the effect of completely canceling precaching optimization where used.
- Fixing support for AVX host without AVX2 support (#19): Context switching was wrongly using AVX2 instructions instead of AVX instructions causing segfaults under hosts supporting AVX but not AVX2.
2018-03-02 Charles HUBAIN <email@example.com>
- Version 0.6
- Important performance improvement in the core engine (#30) This slightly changes the behavior of VMEvents.
- Fix the addCodeAddrCB API (#37)
- atexit and getCurrentProcessMap in python bindings (#35)
- Fix getInstAnalysis on BASIC_BLOCK_ENTRY (#28)
- Various documentation improvements (#34, #37, #38, #40) and an API uniformisation (#29)
2017-12-22 Cedric TESSIER <firstname.lastname@example.org>
- Version 0.5
- Official public release!
2017-12-10 Cedric TESSIER <email@example.com>
- Version 0.5 RC3
- Introducing pyqbdi, full featured python bindings based on QBDIPreload library
- Revising variadic API to include more friendly prototypes
- Various bug, compilation and documentation fixes
2017-10-30 Charles HUBAIN <firstname.lastname@example.org>
- Version 0.5 RC2
- Apache 2 licensing
- New QBDIPreload library for easier dynamic injection under linux and macOS
- Various bug, compilation and documentation fixes
- Big tree cleanup
2017-10-09 Charles HUBAIN <email@example.com>
- Version 0.5 RC1
- New Frida bindings
- Upgrade to LLVM 5.0
- Support for AVX registers
- New callback helpers on mnemonics and memory accesses
- Basic block precaching API
- Automatic cache invalidation when a new instrumentation is added
- Instruction and sequence level cache avoids needless retranslation
- Upgrade of the validator which now supports Linux and macOS
2017-01-06 Charles HUBAIN <firstname.lastname@example.org>
- Version 0.4
- Basic Instruction Shadows concept
- Memory access PatchDSL statements with support under X86_64 (non SIMD memory access only)
- Shadow based memory access API and instrumentation
- C and C++ API stabilization
- Out-of-tree build and SDK
- Overhaul of the entire documentation with a complete PatchDSL explanation and a split between user and developper documentation.
2016-04-29 Charles HUBAIN <email@example.com>
- Version 0.3
- Partial ARM support, sufficient to run simple program e.g cat, ls, …
- Instrumentation filtering system, ExecBroker, allowing the engine to switch between non instrumented and instrumented execution
- Complex execution validation system under linux which allows to do instruction per instruction compared execution between a non instrumented and an instrumented instance of a program
- New callback system for Engine related event e.g basic block entry / exit, ExecBroker transfer / return.
- New (internal) logging system, LogSys, which allows to do priority and tag based filtering of the debug logs.
2016-01-29 Charles HUBAIN <firstname.lastname@example.org>
- Version 0.2
- Upgrade to LLVM 3.7
- Complete X86_64 patching support
- Support of Windows X86_64
- Basic callback based instrumentation
- Usable C++ and C API
- User documentation with examples
- Uniformisation of PatchDSL
2015-10-09 Charles HUBAIN <email@example.com>
- Version 0.1
- Ported the PatchDSL from the minijit PoC
- Corrected several design flaws in the PatchDSL
- Implemented a comparated execution test setup to prove the execution via the JIT yields the same registers and stack state as a normal execution
- Basic patching working for ARM and X86_64 architectures as shown by the compared execution tests
2015-09-17 Charles HUBAIN <firstname.lastname@example.org>
- Version 0.0
- Working dependency system for LLVM and Google Test
- ExecBlock working and tested on linux-X86_64, linux-ARM, android-ARM and macOS-X86_64
- Deployed buildbot infrastructure for automated build and test on linux-X86_64 and linux-ARM