While the Rust Book does an excellent job teaching What is Rust, a book about Why and How to Rust was missing.
Whether in movies or mainstream media, hackers are often romanticized: they are painted as black magic wizards, nasty criminals, or, in the worst cases, as thieves with a hood and a crowbar. In reality, the spectrum of the profile of the attackers is extremely large, from the bored teenager exploring the internet to sovereign State's armies as well as the unhappy former employee.
What are the motivations of the attackers? How can they break seemingly so easily into any network? What do they do to their victims? We will put on our black hat and explore the world of offensive security, whether it be cyber attacks, cybercrimes, or cyberwar. Scanners, exploits, phishing toolkit, implants... From theory to practice, we will explore the arcane of offensive security and build our own offensive tools with the Rust programming language, Stack Overflow's most loved language for five years in a row.
Which programming language allows to craft shellcodes, build servers, create phishing pages? Before Rust, none! Rust is the long-awaited one-size-fits-all programming language meeting all those requirements thanks to its unparalleled guarantees and feature set. Here is why.
Free Updates and DRM Free, of course :)
This is NOT a 1000th tutorial about sqlmap and Metasploit, nor will it teach you the fundamentals of programming.
Instead, it's a from-theory-to-practice guide and you may enjoy it if any of the following:
- You keep screaming "show me the code!" when reading about cyber attacks and malwares
- You are a developer and want to learn security
- You are a security engineer and want to learn Rust programming
- You want to learn real-world and idiomatic rust practices
- You believe that the best defense is thinking like an attacker
- You learn by building and love to look under the hood
- You value simplicity and pragmatism
- You develop your own tools and exploits with Python, Ruby, C, Java...
- You want to learn real-world offensive security, not just pentesting
- You want to start making money with bug bounty programs
- You prefer getting things done over analysis paralysis
But I repeat, this book is NOT a computer science book.
How to perform effective reconnaissance? In this chapter, we will build a multi-threaded scanner in order to automate the mapping of the target.
Unfortunately, when a program spends most of its time in I/O operations, multi-threading is not a panacea. We will learn how async makes Rust code really, really fast and refactor our scanner to async code.
We will add more heterogeneous modules to our scanner and will learn how Rust's type system helps create properly designed large software projects.
Leveraging all we learned previously, we will build an extremely fast web crawler to help us find the needles in the haystack the web is.
Once the external reconnaissance performed, it's time to find entry points. In this chapter we will learn how automated fuzzing can help us to find vulnerabilities that can be exploited to then gain access to our target's systems.
Rust may not be as fast as python when it comes to iterating on quick scripts such as exploits, but as we will see, its powerful type and modules system make it nonetheless a weapon of choice.
Shellcode development is an ungrateful task. Writing assembly by hand is definitely not sexy. Fortunately for us, Rust, one more time, got our back! In this chapter we will learn how to write shellcodes in plain Rust with no_std.
When they can't find exploitable hardware or software vulnerability, attackers usually fall back to what is often the weakest link in the chain: Humans. Again, Rust comes handy and will let us create advanced phishing pages by compiling to WebAssembly.
A RAT (for Remote Access Tool), also known as implant or beacon, is a kind of software used to perform offensive operations on a target's machines. In this chapter we will build our own RAT communicating to a remote server and database.
The consequences of our own infrastructure being compromised or seized can be disastrous. We will add end-to-end encryption to our RAT's communication in order to secure its communications and avoid leaving traces on our servers.
Today's computing landscape is extremely fragmented. From Windows to macOS, we can't target only one Operating System to ensure the success of our operations. In this section we will see how Rust's ecosystem is extremely useful when it comes to cross-compilation.
Once the initial targets compromised, we will capitalize on Rust's excellent reusability to incorporate some parts of our initial scanner to turn our RAT into a worm and reach more targets only accessible from the target's internal network.
Now it's your turn to get things done!
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