Security Basics mailing list archives
RE: tools used to examine a computer
From: "Trevor Cushen" <Trevor.Cushen () sysnet ie>
Date: Wed, 19 Feb 2003 17:35:20 -0000
DD is not copying. Copying can change file properties as in MAC details on the new system or the destination. The MAC being changed is the problem. The original email I was answering didn't discuss documenting either or getting the MD5 signature. DD will give a bit by bit copy which will give the same MD5 signatures and is handy if the machine cannot be rebooted. The disk should be cloned before anything is done on the machine as in copying files or anything. The document I refered to gave a way of doing that and is accepted by law enforcement once you have the MD5 signature. Trevor Cushen Sysnet Ltd www.sysnet.ie Tel: +353 1 2983000 Fax: +353 1 2960499 -----Original Message----- From: H C [mailto:keydet89 () yahoo com] Sent: 18 February 2003 18:02 To: Trevor Cushen Cc: security-basics () securityfocus com Subject: RE: tools used to examine a computer
Also on the point of copying files over the network first, correct me if I'm wrong but that damages the chain of evidence.
Now so? If one collects the necessary info (ie, MAC times, NTFS ADSs, permissions, full path, etc), hashes the file (MD5 and/or SHA-1), and then copies the file over the network using something like 'dd' or type, and netcat/cryptcat, how is the chain of evidence broken? Especially if it's documented?
Have a look at the link below, goes about it a bit long winded but essentially shows how to clone a hard drive over a network connection. This can be done with Windows machines as DD and Netcat can be run from floppy on a Windows machine.
I'm not sure what you're getting at...first you make a reference to breaking the chain of evidence by copying a file, but then you talk about cloning an os over the network using dd and netcat. Wouldn't doing so also break your chain of evidence, if your reasoning is to hold? __________________________________________________ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com ************************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please notify SYSNET Ltd., at telephone no: +353-1-2983000 or postmaster () sysnet ie **************************************************************************************
Current thread:
- Re: tools used to examine a computer, (continued)
- Re: tools used to examine a computer Chuck Swiger (Feb 14)
- Re: tools used to examine a computer Ivan Hernandez (Feb 18)
- Re: tools used to examine a computer planz (Feb 19)
- RE: tools used to examine a computer Michael Parker (Feb 14)
- RE: tools used to examine a computer Mitchell, Edmund (Feb 14)
- RE: tools used to examine a computer Nickels, Walter P (Nick), SOLCM (Feb 14)
- re: tools used to examine a computer H C (Feb 17)
- RE: tools used to examine a computer Trevor Cushen (Feb 18)
- RE: tools used to examine a computer H C (Feb 19)
- RE: tools used to examine a computer Trevor Cushen (Feb 18)
- RE: tools used to examine a computer Trevor Cushen (Feb 19)
- Checkpoint NG - SMTP Guard Features McKenzie Family (Feb 20)
- Re: Checkpoint NG - SMTP Guard Features Steve Suehring (Feb 20)
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- Re: Checkpoint NG - SMTP Guard Features Mel (Feb 20)
- Checkpoint NG - SMTP Guard Features McKenzie Family (Feb 20)
- RE: tools used to examine a computer Trevor Cushen (Feb 20)
- RE: tools used to examine a computer H C (Feb 20)
- RE: tools used to examine a computer Robinson, Sonja (Feb 20)
- RE: tools used to examine a computer Trevor Cushen (Feb 20)
- RE: tools used to examine a computer H C (Feb 20)
- RE: tools used to examine a computer Trevor Cushen (Feb 20)
- RE: tools used to examine a computer H C (Feb 20)