A new free virus reverse engineering tool from the NSA
Ghidra quickstart & tutorial: Solving a simple cracking problem
A big part of dealing with new viruses is figuring out how they work. To do that, you have to reverse engineer them. The National Security Agency (NSA) has to do a lot of this work, of course, so they created their own tool, called Ghidra, to help them do it.
By the way, it's pronounced Ghee-dra. It was released to the public for free and as open source on March 5, 2019, at the RSA conference in San Francisco. You can even check out the Ghidra presentation notes by Robert Joyce, Senior Advisor to the National Security Agency (NSA).
To truly understand why it was important to release Ghidra, we need to understand what reverse engineering is and what it is used for.