Welcome to First

About Us

The Function Identification and Recover Signature Tool (FIRST) developed by Talos, is an IDA Pro plugin that allows reverse engineers to more quickly complete static analysis. It makes finding similar functions faster and easier by removing the need to synchronize function metadata. 

FIRST’s extensible framework allows users to submit function metadata to a repository and search the repository for function metadata similar to the function


Users can contribute function metadata and search for function metadata similar to the function(s) being analyzed in IDA. FIRST’s framework allows developers to create new ways to derive similarities between functions.

  • Save function metadata (name, prototype, and comment)
  • Provide way to find similar functions
  • Allow users to apply function metadata in IDA Pro
  • Reduce reverse engineering time

Requirements & Installation

Implement the FIRST plugin today!


  • IDA Pro 6.9 SP1
  • Python Requests (https://pypi.python.org/pypi/requests/)


The IDA Pro plug-in can be downloaded from GitHub


For the most stable version of FIRST, get the plug-in from the master branch. For the latest (more)


Check out our Docs (Server - IDA Plugin).

Submit Your Own Engine

Show Us What You Got!