William Woodruff

Trail of Bits Blog

Read the official announcement on the PyPI blog as well! For the past year, we’ve worked with the Python Package Index to add a new, more secure authentication method called “trusted publishing.” Trusted publishing eliminates the need for long-lived API tokens and passwords, reducing the risk of supply chain attacks ... Read More

By William Woodruff Last week, over 500 cryptographers from around the world gathered in Amsterdam for Real World Crypto 2022, meeting in person for the first time in over two years. As in previous years, we dispatched a handful of our researchers and engineers to attend the conference, listen to ... Read More

TL;DR: We’re open-sourcing a new framework, blight, for painlessly wrapping and instrumenting C and C++ build tools. We’re already using it on our research projects, and have included a set of useful actions. You can use it today for your own measurement and instrumentation needs: Why would you ever want ... Read More

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 use it today to verify signatures on your Windows executables! As a library, μthenticode aims to be a ... Read More

TL;DR: Trail of Bits has developed ntfs_journal_events, a new event-based osquery table for Windows that enables real-time file change monitoring. You can use this table today to performantly monitor changes to specific files, directories, and entire patterns on your Windows endpoints. Read the schema documentation here! File monitoring for fleet ... Read More

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. You can use it to discover discrepancies in your own decoders and analysis tools! In the beginning, there ... Read More

Since March, Trail of Bits has been working with the Python Software Foundation to add two-factor authentication (2FA) to Warehouse, the codebase that powers PyPI. As of today, PyPI members can enable time-based OTP (TOTP) and WebAuthn (currently in beta). If you have an account on PyPI, go enable your ... Read More

We open-sourced a fault injection tool, KRF, that uses kernel-space syscall interception. You can use it today to find faulty assumptions (and resultant bugs) in your programs. Check it out! This post covers intercepting system calls from within the Linux kernel, via a plain old kernel module. We’ll go through ... Read More

We’re proud to announce the release of Winchecksec, a new open-source tool that detects security features in Windows binaries. Developed to satisfy our analysis and research needs, Winchecksec aims to surpass current open-source security feature detection tools in depth, accuracy, and performance without sacrificing simplicity. Feature detection, made simple Winchecksec ... Read More