PromqryUI is a tool with a Windows graphical interface that can be used to detect network interfaces that are running in promiscuous mode. PromqryUI can accurately determine if a modern (Windows 2000 and later) managed Windows system has network interfaces in promiscuous mode. If a system has network interfaces in promiscuous mode, it may indicate the presence of a network sniffer running on the system. PromqryUI cannot detect standalone sniffers or sniffers running on non-Windows operating systems. Tag: