wep0ff-ng

can be used to generate traffic with WEP-based wireless clients,
who are seeking for AP to mount KoreK or other attacks.

Download:
http://download.securitylab.ru/wep0ff-ng.tar.gz

Article (Russian):
http://www.securitylab.ru/analytics/312606.php

From readme:
This tool can be used to generate traffic
with WEP-based wireless clients, who are seeking for AP.

Webページがロシア語なので良く分からないですが，メールの引用を載せました．