These utilities utilize three decryption methods—Brute-force, Brute-force with Mask, and Dictionary attacks—to recover passwords for compressed archives like .zip and .rar files.
In the first half of 2025, cybersecurity firms observed an uptick in infections attributed to a new ransomware variant colloquially named "Thundersoft." Unlike its predecessors, Thundersoft targeted industrial control system (ICS) engineering workstations, specifically those running Siemens TIA Portal and Rockwell Studio 5000. The ransomware appended the extension .thunder to encrypted files. In response, a collective of reverse engineers released an unofficial tool: the Thundersoft Decryptor.
