Re: LAND attack vulnerability on Windows Server 2003 and Windows XP

Dear Marcio Vieira,
MV> We were able to prevent the 100% CPU utilization by setting the value of
MV> "SynAttackProtect" to 1 or 2 in the TCP/IP parameters:
MV> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
MV> SynAttackProtect = 1 (DWORD)

Just wanted to report that one, I set this value amongst others in my
freeware network hardening tool "Harden-it" which can be downloaded
from from http://www.sniff-em.com (Shameless advertising).

--
Thierry Zoller
mailto:[email protected]

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NTBugtraq Editor's Note:

Most viruses these days use spoofed email addresses. As such, using an Anti-Virus product which automatically notifies the perceived sender of a message it believes is infected may well cause more harm than good. Someone who did not actually send you a virus may receive the notification and scramble their support staff to find an infection which never existed in the first place. Suggest such notifications be disabled by whomever is responsible for your AV, or at least that the idea is considered.
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