Date: Sun, 22 Jul 2001 23:41:26 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Thierry Black" <thierryblack@hotmail.com>, <freebsd-questions@FreeBSD.ORG> Subject: RE: SirCam virus Message-ID: <000001c11342$7ee09020$1401a8c0@tedm.placo.com> In-Reply-To: <F214FSrAuWiqJmdTcjJ00003fcf@hotmail.com>
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Actually this virus is an easy one to block. According to the advisory there is always one of the following strings: "Hi! How are you?" "I send you this file in order to have your advice" So all you need to do is replace the local delivery agent with Procmail and write a procmail recipe to filter out messages containing either of those strings. I did a column on this a while ago it's here: http://www.computerbits.com/archive/1998/1000/lan9810.html You really ought to be doing this for your spamfiltering anyway. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com >-----Original Message----- >From: owner-freebsd-questions@FreeBSD.ORG >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Thierry Black >Sent: Sunday, July 22, 2001 9:32 PM >To: freebsd-questions@FreeBSD.ORG >Subject: SirCam virus > > >Hello again! My server has received copies of this "SirCam" virus notified >at www.symantec.com. We are using sendmail, and cyrus for delivery. How can >I put a rule to block the messages? The subject, sender, attachment name, >and headers are all random (taken from the virus victims email). The only >common things are in the body. The messages start with "Hi! How are you?" >and end with "See you later. Thanks". > >I need to block these messages from being sent to or from our email server. >I have heard of procmail, but I don't know hwo to use it with sendmail 8.9.3 >and cyrus. > > >_________________________________________________________________ >Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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