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Null Session
What it is A null session is a network connection made without a username or password. On older Windows setups, an anonymous user can connect to special shares like IPC$ to list users, groups, and shared folders or talk to services that use named ...
Not-a-virus
What it is A not-a-virus alert means your security tool found software that isn’t a classic virus but could be risky. These are often PUPs (potentially unwanted programs), adware, riskware, or dual-use tools like download managers, password tools, or ...
NanoCore
What it is NanoCore is a remote access trojan (RAT) used by criminals to spy on victims, steal data, and control Windows PCs from afar. It can log keystrokes, grab screenshots, record from the webcam or mic, and drop more malware. Technical details ...
Nemucod (JS.Nemucod)
What it is Nemucod is a trojan downloader/dropper that arrives as JavaScript or PHP and then pulls in ransomware or other malware. It’s commonly spread by email attachments and malicious links. Technical details and IOCs are in our Nemucod overview ...
NDR (Network Detection And Response)
What it is Network Detection and Response (NDR) watches live network traffic to spot and investigate suspicious behavior in real time. Instead of relying on signatures, it analyzes patterns and anomalies to catch threats moving across your ...
NGAV (Next-Generation Antivirus)
What it is NGAV is a modern security app that stops threats by watching behavior, not just matching virus signatures. It uses heuristics, ML models, and attack-technique rules to block ransomware, fileless attacks, and zero-days. For a deeper look, ...