Cargo is package manager for Rust's and its build system. Cargo is used to search for, install, and manage packages that you want to use and build them. Cargo is also the test runner, and the documentation generator.

Rust is a systems programming language pursuing the trifecta: safety, which is guaranteed at compile time; fearless concurrency, which is a lot easier when things are safe; and blazingly fast speed due to zero-cost abstractions and other nice things.

Kekpop Ransomware encrypts user data using a combination of AES+RSA algorithms and then demands a ransom of $500 in BTC to get the files back.

BPFDoor is a highly evasive surveillance tool using the Berkeley Packet Filter (BPF). It is allegedly attributed to Chinese threat actors. It is assumed to be deployed on thousands of Linux systems, its controller has gone almost completely unnoticed by endpoint protection vendors despite it being in use for at least five years.

Quantum ransomware is the re-branded version of the MountLocker Ransomware. Threat actors uses IcedID malware as one of the initial access vectors that deploys Cobalt Strike. It then remotely access victim computers for data theft and to deploy Quantum Locker ransomware for encryption.