If you suspect your system has been compromised by an njRAT payload or a backdoored builder:

Look for unauthorized entries in HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Use a reputable, updated anti-malware solution (such as Malwarebytes or Windows Defender) to scan and quarantine the threat.

: Sandbox reports from ANY.RUN and Hybrid Analysis consistently flag this version for malicious behavior, including keylogging and registry manipulation. Review: njRAT v0.7d What it is

For everyday users and network administrators, defending against legacy threats like njRAT relies on fundamental security hygiene: