Full Disclosure mailing list archives
RE: [inbox] Re: Re: E-Mail viruses
From: "Curt Purdy" <purdy () tecman com>
Date: Fri, 5 Mar 2004 17:12:34 -0600
Paul Szabo wrote:
Yes, it eliminates a large class of viruses. But, it would not do anything to "local" attacks (a virus modified specifically to handle your particular setup; and if it becomes widely used then "real" viruses will also do the same). Also it does nothing to viruses that do not use attachments: attacks on a "Subject:" buffer overflow, or a virus delivery via the web with a link or "Content-type: message/external-body".
This was meant to deal only with email virus attachments that are currently dealt with by email AV servers. As for the first point, technically true, but highly unlikely as long as everyone who implements this strategy don't use the same extension. If you pick a relatively random sequence, a.k.a as in .dps for my company, you would not be the target of a virus, whose purpose is to infect as many systems as possible. Curt Purdy CISSP, GSEC, MCSE+I, CNE, CCDA Information Security Engineer DP Solutions ---------------------------------------- If you spend more on coffee than on IT security, you will be hacked. What's more, you deserve to be hacked. -- White House cybersecurity adviser Richard Clarke _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- RE: [inbox] Re: Re: E-Mail viruses bart2k (Mar 05)
- Re: Re: E-Mail viruses Curt Purdy (Mar 05)
- <Possible follow-ups>
- RE: [inbox] Re: Re: E-Mail viruses Paul Szabo (Mar 05)
- RE: [inbox] Re: Re: E-Mail viruses Curt Purdy (Mar 05)
- RE: [inbox] Re: Re: E-Mail viruses Hunter, Laura E. (Mar 05)
- RE: [inbox] Re: Re: E-Mail viruses MacDougall, Shane (Mar 05)