mailing list archives
Re: Plague Proof of Concept Linux backdoor
From: Andrew Farmer <andfarm () gmail com>
Date: Sun, 22 Oct 2006 20:14:58 -0700
On 22 Oct 06, at 04:29, hijacker () oldum net wrote:
even if they have ssh access, there is still nothing they can do,
to create two files in there $HOME directories containing
paths.h and sysexits.h ?
Why would that be considered a backdoor?
The awk commands parse out the strings "/etc/passwd" and "/etc/
the headers. It's still rather easily detected - most of the rootkit-
programs will detect an alternate uid0 account very quickly - but it
demonstrate an interesting way of avoiding target strings in the binary.
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