There is a specific ransomware family also named Nitrogen that appends a .NBA extension to encrypted files and drops a readme.txt ransom note. Legitimate Alternatives
Once executed, it often uses DLL side-loading with a Python environment to establish a connection with a command-and-control (C2) server. nitrogen.exe
It is designed to infiltrate corporate networks to steal sensitive data, deploy secondary tools like Cobalt Strike , and eventually launch ransomware attacks (often associated with the BlackCat/ALPHV group). There is a specific ransomware family also named
It typically arrives via malvertising . Attackers buy Google or Bing ads for popular IT tools (like AnyDesk, WinSCP, or PuTTY) that lead to fake download sites. It typically arrives via malvertising
If you are seeing an executable file named nitrogen.exe on your system, it is highly likely you are dealing with a rather than a legitimate tool.