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Message-ID: <20030828163326.GA15065@cs.utk.edu> From: vasil at cs.utk.edu (David Vasil) Subject: AV "feature" does more DDoS than Sobig On Thu, Aug 28, 2003 at 10:05:20AM -0300, Fabio Gomes de Souza <bugtraq@....com.br> wrote: > The problem is that many e-mail virus scanners send a "You are infected" > reply to the address contained in the "From" header. Since the messages > are spoofed, the inoccent, uninfected user "A" is flooded by automatic > complaints from "C","D","E" regarding the virus that "B" sends. Some mail scanning utilities such as amavisd-new allow you to specify a regex pattern of virus names that should not generate the "You are Infected" warnings you mention. This way you can specify what viruses spoof the return address so that you are not sending out a mail each time the virus is detected. If all admins would properly configure their MTA's then this would not be a problem. -Dave -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20030828/8fb685e4/attachment.bin
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