Security Basics mailing list archives
Re: Spyware
From: "Jon Lawhead" <samurai () berkeley edu>
Date: Wed, 15 Dec 2004 16:33:26 -0800
Hi Matt,Unfortunately the spyware industry isn't nice enough to standardize what port its programs use when phoning home. You best bet would just be to prevent any unauthorized programs from getting out; that way they'll be blocked no matter what port they try.
Jon Lawhead UC Berkeley Rescomp/SINE On Tue, 14 Dec 2004 17:37:48 -0500 Matt Stern <sternm () comprehensive com> wrote:
Hello all:I was just wondering if spyware sends its answers "back home" on any particular TCP or UDP port. If so, then couldn't I doubly safeguard the LAN (after trying to keep all the spyware off the workstations) by disallowing outbound communications via the firewall, for those ports? Or conversely, instead of allowing all outbound traffic, only allow the usual ports, such as 80, 443, 23, etc?Thanks. -- Matthew H. Stern, CCP/CDP, sternm () comprehensive com Serving the IT industry since 1976 Comprehensive Computer Services Inc. www.comprehensive.com Phone: 631 755-2250, Fax 755-2254 560 Broad Hollow Road, Melville NY 11747
Current thread:
- Spyware Matt Stern (Dec 15)
- Re: Spyware dallas jordan (Dec 16)
- Re: Spyware Liran Cohen (Dec 16)
- Re: Spyware Jon Lawhead (Dec 16)
- <Possible follow-ups>
- RE: Spyware Gross Barry D. (Dec 16)
- RE: Spyware Jeff Gercken (Dec 16)
- RE: Spyware Griffin, Van (Dec 16)
- RE: Spyware Friend, Jason A Contractor/CoTs (Dec 16)
- RE: Spyware geraldf (Dec 16)
- RE: Spyware Paris E. Stone (Dec 17)