Versions

1,0,3,1	92.59%
1,0,2,9	7.41%

There are 2 versions of mdnsresponder.exe in the wild, the latest version being 1,0,3,1. It is started as a Windows Service called '##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762##' with the name 'Bonjour Service' and described as “##Id_String2.6844F930_1628_4223_B5CC_5BB94B879762##”. . In addition, it is run under the context of the SYSTEM account with extensive privileges (the administrator accounts have the same privileges). The average file size is about 224 KB. During the process's lifecycle, the typical CPU resource utilization is about 0.0016% including both foreground and background operations, the average private memory consumption is about 1.86 MB with the maximum memory reaching around 4.44 MB. Addionally, typically read and write I/O disk operations is about 23 Bytes per minute for reads and 0 Bytes per minute for writes.

Bonjour Service provides a general method to discover services on a local area network. The software is widely used throughout Mac OS, and allows users to set up a network without any configuration. It is used to find printers and file-sharing servers. iTunes uses Bonjour to find shared music, iPhoto to find shared photos. Bonjour for Windows and AirPort Base Stations may be configured to use Wide Area Bonjour which allows for wide area service discovery via a configured DNS server.