Selfishnet V0.1 Beta -

By 2008, most antivirus suites (Norton, McAfee, Kaspersky) began flagging SelfishNet as a "HackTool:ARP" or "Riskware." It wasn't a virus, but it was a tool for malicious activity. Users had to disable real-time protection to run it—a terrible idea for any beta software.

) should be set to run in compatibility mode for Windows XP or Vista. Limitations and Security Considerations Temporary Nature selfishnet v0.1 beta

: Many versions found online are hosted on untrusted third-party sites and are frequently flagged by antivirus software as potentially unwanted programs (PUPs) or malware. By 2008, most antivirus suites (Norton, McAfee, Kaspersky)

Selfishnet is often flagged by antivirus software as a "potentially unwanted program" because of its ARP spoofing capabilities. Ensure you are using it on a network you own or have permission to manage. Because this software is no longer updated and

Because this software is no longer updated and is frequently hosted on unofficial mirror sites, installers for "SelfishNet v0.1 Beta" or "v0.2" often contain bundled malware or trojans. Technical analysis of these files on platforms like Hybrid Analysis frequently shows suspicious behavior flags. Hybrid Analysis modern alternative that is safer for current versions of Windows? SelfishNetv0.2-beta_vista.exe - Hybrid Analysis

SelfishNet v0.1 Beta — lightweight Windows network monitoring and bandwidth control utility (early beta). Designed to display active hosts on a LAN and allow per-host bandwidth limiting and blocking by manipulating ARP and network adapter settings via a GUI.

The most famous bug: If the user had a slow CPU (common with Pentium 4 laptops), the ARP spoofing thread would consume 100% of one core. The system would overheat, the network card would reset, and SelfishNet would crash—leaving the user disconnected while the rest of the network recovered.