From owner-freebsd-questions@FreeBSD.ORG Thu Aug 18 16:42:15 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D782A106564A for ; Thu, 18 Aug 2011 16:42:15 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from asmtpout027.mac.com (asmtpout027.mac.com [17.148.16.102]) by mx1.freebsd.org (Postfix) with ESMTP id BF6968FC0A for ; Thu, 18 Aug 2011 16:42:15 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII Received: from cswiger1.apple.com ([17.209.4.71]) by asmtp027.mac.com (Oracle Communications Messaging Exchange Server 7u4-18.01 64bit (built Jul 15 2010)) with ESMTPSA id <0LQ40018YUEEJA50@asmtp027.mac.com> for freebsd-questions@freebsd.org; Thu, 18 Aug 2011 09:42:15 -0700 (PDT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.4.6813,1.0.211,0.0.0000 definitions=2011-08-18_06:2011-08-18, 2011-08-18, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=6.0.2-1012030000 definitions=main-1108180153 From: Chuck Swiger In-reply-to: Date: Thu, 18 Aug 2011 09:42:14 -0700 Message-id: References: <033753EAA5A5EE53C17333A5@utd71538.utdallas.edu> To: alexus X-Mailer: Apple Mail (2.1084) Cc: freebsd-questions@freebsd.org Subject: Re: looking for a spammer/virii/malware .... on my system X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Aug 2011 16:42:15 -0000 On Aug 18, 2011, at 9:36 AM, alexus wrote: > su-3.2# tcpdump -nnAvvvw webmail.west.cox.net 'dst host 68.6.19.1 and > (dst port 80 or 443)' > tcpdump: listening on bce0, link-type EN10MB (Ethernet), capture size 96 bytes > Got 0 > > let's see what I capture... You're going to capture traffic of people reading webmail from Cox.net. However, as much as that might be interesting, it is not useful for detecting outbound spam from a machine or network.... Regards, -- -Chuck