reversing
Celebrating our 2024 open-source contributions
While Trail of Bits is known for developing security tools like Slither, Medusa, and Fickling, our engineering efforts extend far beyond our own projects. Throughout 2024, our team has been deeply engaged ...
Binary type inference in Ghidra
By Ian Smith Trail of Bits is releasing BTIGhidra, a Ghidra extension that helps reverse engineers by inferring type information from binaries. The analysis is inter-procedural, propagating and resolving type constraints between ...
Finding bugs in C code with Multi-Level IR and VAST
Intermediate languages (IRs) are what reverse engineers and vulnerability researchers use to see the forest for the trees. IRs are used to view programs at different abstraction layers, so that analysis can ...
Towards Practical Security Optimizations for Binaries
By Michael D. Brown, Senior Security Engineer To be thus is nothing, but to be safely thus. (Macbeth: 3.1) It’s not enough that compilers generate efficient code, they must also generate safe ...
Toward a Best-of-Both-Worlds Binary Disassembler
By Stefan Nagy This past winter, I was fortunate to have the opportunity to work for Trail of Bits as a graduate student intern under the supervision of Peter Goodman and Artem ...
Playing with GuLoader Anti-VM techniques
GuLoader is one of the most widely used loaders to distribute malware throughout 2020. Among the malware families distributed by GuLoader, we can find FormBook, AgentTesla and other commodity malware. A recent ...
Verifying Windows binaries, without Windows
TL;DR: We’ve open-sourced a new library, μthenticode, for verifying Authenticode signatures on Windows PE binaries without a Windows machine. We’ve also integrated it into recent builds of Winchecksec, so that you can ...
Destroying x86_64 instruction decoders with differential fuzzing
TL;DR: x86_64 decoding is hard, and the number and variety of implementations available for it makes it uniquely suited to differential fuzzing. We’re open sourcing mishegos, a differential fuzzer for instruction decoders ...
Reverse Taint Analysis Using Binary Ninja
by Henry Wildermuth, Horace Mann High School We open-sourced a set of static analysis tools, KRFAnalysis, that analyze and triage output from our system call (syscall) fault injection tool KRF. Now you ...
Announcing Automated Reverse Engineering Trainings
Consider our modular trainings. They can be organized to suit your company’s needs. You choose the number of skills and days to spend honing them ...
