If you really want to poke around in the binary, you can use a decompiler like IDA, Ghidra, or Binary Ninja's free version. Source: 8 months ago

Still $$$ for crippled functionality. As an alternative, https://binary.ninja is gaining traction at work. - Source: Hacker News / 11 months ago

As I said, a regular text editor won’t do for reading a binary file, so I needed to choose a disassembler to break the challenge binaries out into their basic blocks. I chose to use Binary Ninja because it has a very easy-to-use Python API, and it’s hobbyist-level cheap (for comparison, the industry-standard disassembler is IDA Pro, which they will sell to you for roughly an arm, and continue to pick off your... - Source: dev.to / over 3 years ago

It’s an awesome reverse engineering tool (https://binary.ninja). Has really nice api support so you can basically automate anything and make plugins for custom architectures and stuff like that. Source: almost 2 years ago

It's basically the opposite of https://godbolt.org/ -- put in binary, get out decompilation amongst many decompilers. It's open source (though you need a Binary Ninja and Hex-Rays license to run internally -- you'll want to check with the respective companies to make sure your particular license is acceptable for use even internally first!). Source: almost 2 years ago

Not sure about the invitation though. I heard that now border controls are sticter than before - but for business visas. Anyway, for peace of mind, if you want to book a hotel from Europe, you can use zenhotels.com. Source: 6 months ago

I made a hotel reservation from zenhotels.com about 4 months ago. I decided to call the hotel to make sure my reservation was confirmed just to be safe, and they told me my reservation was cancelled, even though I did not cancel it and it says its still active on the zenhotel website. So lesson learned, nothing is guaranteed. Hopefully this will save someone some headache like I just went through. Source: about 2 years ago