Gentoo Archives: gentoo-user

From: "Boyd Stephen Smith Jr." <bss03@××××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Managing my kernel
Date: Tue, 15 May 2007 20:11:49
Message-Id: 200705151506.05450.bss03@volumehost.net
In Reply to: Re: [gentoo-user] Managing my kernel by Dan Farrell
1 On Tuesday 15 May 2007, Dan Farrell <dan@×××××××××.cx> wrote about 'Re:
2 [gentoo-user] Managing my kernel':
3 > On Tue, 15 May 2007 09:21:17 +0200
4 > Etaoin Shrdlu <shrdlu@×××××××××××××.org> wrote:
5 > > On Tuesday 15 May 2007 03:57, Dan Farrell wrote:
6 > > > On Tue, 15 May 2007 12:33:22 +1200
7 > > > Mark Kirkwood <markir@××××××××××××.nz> wrote:
8 > > > > 2/ disables loadable modules completely
9 > > >
10 > > > But Why? What's the benefit?
11 > >
12 > > [S]ome rootkits
13 > > use LKMs, and removing loadable modules support might help to prevent
14 > > such attacks.
15 >
16 > I'd never heard of LKM rootkits, although the
17 > concept is I suppose a good one, as far as defeating security goes. I
18 > must say I'm not going to start worrying about it, but point taken
19
20 The (GPL'd) rootkit I was able to look at didn't even use LKMs, it simply
21 patched the kernel live via /proc/kcore. The version I saw probably
22 wouldn't work anymore, but LKMs aren't the only way a rootkit can take
23 hold.
24
25 --
26 Boyd Stephen Smith Jr. ,= ,-_-. =.
27 bss03@××××××××××.net ((_/)o o(\_))
28 ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-'
29 http://iguanasuicide.org/ \_/

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