KisMAC 0.2.99 has been released
KisMAC is an open-source and free stumbler/scanner application for Mac OS X. It has an advantage over MacStumbler / iStumbler / NetStumbler in that it uses monitor mode and passive scanning.Download
KisMAC supports several third party PCMCIA cards: Orinoco, PrismII, Cisco Aironet, Atheros and PrismGT. USB devices with Intersil Prism2, Ralink rt2570 and rt73, and Realtek rtl8187 chipsets are in progress towards full support as well. All of the internal AirPort hardware is supported for scanning.
Please note: This program is not intended for novices but for professional users.
Features:
Reveals hidden / cloaked / closed SSIDs
Shows logged in clients (with MAC Addresses, IP addresses and signal strengths)
Mapping and GPS support
Can draw area maps of network coverage
PCAP import and export
Support for 802.11b/g
Different attacks against encrypted networks
Deauthentication attacks
AppleScript-able
Kismet drone support (capture from a Kismet drone)
Supported hardware chipsets:
Apple AirPort and AirPort Extreme (dependent upon Apple's drivers)
Lucent Hermes I amp; II (Orinoco 2 and 11 Mbit)
Intersil Prism 2, 2.5, 3 in PCMCIA and USB devices
Cisco Aironet (with older 4.xx firmware)
Intersil PrismGT
Atheros PCMCIA
Ralink rt2570 and rt73 USB devices
Realtek RTL8187L USB (such as the Alfa AWUS036H)
Crypto support:
Bruteforce attacks against LEAP, WPA and WEP
Weak scheduling attack against WEP
Newsham 21-bit attack against WEP
Requirements:
OS X 10.5 or later.
Leopard users with a USB Intersil/Prism2 device, and Tiger users, see author's site for downloads.
Universal Binary
License: Freeware
Requires: OSX 10.5+
Size: 3.5Mb