看板FB_security
標 題Re: Hacked or not appendice
發信站NCTU CSIE FreeBSD Server (Sat Jun 12 13:39:34 2004)
轉信站ptt!FreeBSD.csie.NCTU!not-for-mail
On Sat, 12 Jun 2004 13:03:07 +0000
Thordur Ivar <
[email protected]> wrote:
TI> I have on a CD a number of binarys ( sources actually ) ( e.g. ls,
TI> find, grep, awk, sed, locate e.t.c. ) and when I belive that a
TI> machine has been cracked I remove the network cable from that
TI> machine and mount the cdrom build the sources and start looking. If
TI> I need something in that process I put it on my USB memstick from a
TI> 'trusted machine' and move it by hand over.
When I was unable to do the same thing, I've recompiled md5 tool from freshly fetched sources and used it to test utilities. I don't beleive in attacker catching thr build process transparently...
--
Alex.
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