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#1: Dynamic binary optimization?

Posted on 2010-01-05 18:31:03 by Yuri Csapo

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I've been having problems with my intrusion detection software recently (aide). It's pointing to
modified binaries and libraries on several boxes. At first I was treating this as a malicious
invasion but as I've gone through the steps for that I'm more and more sure that the systems are not
actually compromised. After some thought, we remembered a discussion about something that tries to
dynamically optimize executables for the particular hardware they are running on.

Web searches have yielded plenty of information about dynamic optimization or dynamic adaptation but
nothing specific to Linux or to a particular product. Does anybody have any information about that?

TIA

- --
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone: (303) 273-3503
Fax: (303) 273-3475
Email: ycsapo@mines.edu

Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
With a PC, I always felt limited
by the software available.
On Unix, I am limited only by my knowledge.
- --Peter J. Schoenster
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#2: SOLVED - Re: Dynamic binary optimization?

Posted on 2010-01-06 15:41:49 by Yuri Csapo

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Argh, it's the second time this thing bites me. It's prelink. Disabled it. Problem solved.

On 1/5/10 10:31 AM, Yuri Csapo wrote:
> I've been having problems with my intrusion detection software recently (aide). It's pointing to
> modified binaries and libraries on several boxes. At first I was treating this as a malicious
> invasion but as I've gone through the steps for that I'm more and more sure that the systems are not
> actually compromised. After some thought, we remembered a discussion about something that tries to
> dynamically optimize executables for the particular hardware they are running on.
>
> Web searches have yielded plenty of information about dynamic optimization or dynamic adaptation but
> nothing specific to Linux or to a particular product. Does anybody have any information about that?
>
> TIA
>
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- --
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone: (303) 273-3503
Fax: (303) 273-3475
Email: ycsapo@mines.edu

Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
With a PC, I always felt limited
by the software available.
On Unix, I am limited only by my knowledge.
- --Peter J. Schoenster
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Version: GnuPG v1.4.9 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

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#3: Re: SOLVED - Re: Dynamic binary optimization?

Posted on 2010-01-07 04:54:36 by Tom Corwine

Yuri Csapo wrote:
> Argh, it's the second time this thing bites me. It's prelink. Disabled it. Problem solved.

Thanks for the update!
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