From owner-freebsd-security Wed Aug 1 11:21:21 2001 Delivered-To: freebsd-security@freebsd.org Received: from veldy.net (w028.z064001117.msp-mn.dsl.cnc.net [64.1.117.28]) by hub.freebsd.org (Postfix) with ESMTP id 0C11537B401 for ; Wed, 1 Aug 2001 11:21:13 -0700 (PDT) (envelope-from veldy@veldy.net) Received: from HP2500B (localhost.veldy.net [127.0.0.1]) by veldy.net (Postfix) with SMTP id 2FA4FBAB9; Wed, 1 Aug 2001 13:21:10 -0500 (CDT) Message-ID: <00fb01c11ab6$829c83b0$3028680a@tgt.com> From: "Thomas T. Veldhouse" To: "Maximum" , , "Brett Glass" References: <4.3.2.7.2.20010801115333.0476d100@localhost> Subject: Re: Trojan injected in my Freebsd 4.1-RELEASE Date: Wed, 1 Aug 2001 13:19:30 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Somebody keeps trying to install something through my FTPd when it is setup to allow anonymous users (no directories available for upload either). I opened up the FTP ports on Sunday night and I had somebody hack into my system before Monday morning. Lucky for me, they ran out of space on /var before they were able to do any damage. Seems there is a security hole with the installed ftpd. I usually use proftpd, which was always been secure for me. The only reason I switched back was that I needed a quick way to increase the timeout for ftp to my server (Dreamweaver likes a long timeout). Tom Veldhouse veldy@veldy.net ----- Original Message ----- From: "Brett Glass" To: "Maximum" ; Sent: Wednesday, August 01, 2001 12:55 PM Subject: Re: Trojan injected in my Freebsd 4.1-RELEASE > At 08:24 AM 8/1/2001, Maximum wrote: > > >In one of shell script I'm talking about i found copyright mark "nrfbsdrk v0.1 by gREMLiNs". > > The final letters of "nrfbsdrk" almost certainly stand for "FreeBSD rootkit." > I'd be interested in knowing what was exploited to install it. Could be BIND > or telnetd. > > --Brett > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message