Security researchers have identified performance problems with a
recent wireless driver security update from Intel. Vulnerabilities in
Centrino device drivers for Windows and Intel's PROSet management
software prompted a security update three weeks ago.
The initial update weighed in at more than 100MB, though Intel did
produce a slimmed-down update
soon after. The current driver release for the 2915ABG/2200BG
wireless cards is 220.127.116.11.
Unfortunately, software installed (S24EvMON.exe) with this Wi-Fi
driver is leaky, consuming considerable CPU and memory resources and
thereby hitting on the performance of PCs with the software
installed, researchers at net security firm F-Secure have discovered
The firm used Process Explorer from Sysinternals to identify the
source of performance problems it began to notice. Intel is aware of
the issue and is working on a revised fix.
Although the performance hit is undesirable, leaving systems
unpatched is even more of a problem. The SANS Institute has put
together an advisory (http://isc.sans.org/diary.php?date=2006-08-24)
more suited to sys admins and the technically knowledgeable, which
outlines performance loss mitigation strategies.
Best regards, FAQ for Wireless Internet: <http://Wireless.wikia.com>
John Navas FAQ for Wi-Fi: <http://wireless.wikia.com/wiki/Wi-Fi>
Wi-Fi How To: <http://wireless.wikia.com/wiki/Wi-Fi_HowTo>
Fixes to Wi-Fi Problems: <http://wireless.wikia.com/wiki/Wi-Fi_Fixes>