RE: Core

From: Yonatan Bokovza (Yonatan@xpert.com)
Date: 08/15/01


Message-ID: <EB513E68D3F5D41191CA00025558810150D616@mailserv.xpert.com>
From: Yonatan Bokovza <Yonatan@xpert.com>
To: "'security-discuss@linuxsecurity.com'" <security-discuss@linuxsecurity.com>
Subject: RE: Core
Date: Wed, 15 Aug 2001 17:20:25 +0300

core, or filename.core is a file left after a program died abnormally.
the "ELF" in the header reminds of an actual executable.
You could run "file core" to see what is this file, and
"strings core" to learn some more about the memory allocated
to this program at the time of dying.

Yonatan.

> -----Original Message-----
> From: Zielinski Eric [mailto:Eric.Zielinski@Vigilinx.com]
> Sent: Wednesday, August 15, 2001 17:16
> To: security-discuss@linuxsecurity.com
> Subject: Core
> Sensitivity: Confidential
>
>
> Hey I am still new to RH7, however I have noticed 1 file
> called Core in one
> of my users home directories. This is not in the other users
> directories.
> The file size is 2650112. Any recommendations on what this
> is? When I vi the
> core file I see a lot of this:
> ^?ELF^A^A^A^@^@^@^@^@^@^@^@^@^D^@^C^@^A^@^@^@^@^@^@^@4^@^@^@^@
> ^@^@^@^@^@^@^@
> 4^@
> ^@r^@^@^@^@^@^@^@^D^@^@^@t^N^@^@^@^@^@^@^@^@^@^@H^G^@^@^@^@^@^
> @^@^@^@^@^@^@^
> @^@^
> A^@^@^@^@
> ^@^@^@~@^D^H^@^@^@^@^@^@^@^@^@P^@^@^E^@^@^@^@^P^@^@^A^@^@^@^@
> ^@^@^@^
> D^H^@^@^@^@^@^P^@^@^@^P^@^@^F^@^@^@^@^P^@^@^A^@^@^@^@0^@^@^@
> ^D^H^@^@^@^@^@P
> ^N^@
> ^@P^N^@^G^@^@^@^@^P^@^@^A^@^@^@^@~@^N^@^@^@^@@^@^@^@^@^@^@^@^@
> ^@`^A^@^E^@^@^
> @^@^
> P^@^@^A^@^@^@^@~@^N^@^@`^A@^@^@^@^@^@^P^@^@^@^P^@^@^F^@^@^@^@^
> P^@^@^A^@^@^@^
> @~P^
> N^@^@p^A@^@^@^@^@^@^P^@^@^@^P^@^@^F^@^@^@^@^P^@^@^A^@^@^@^@|
> ^N^@^@~@^A@^@^@^@^@
> ^@^@^@^@^@^P^B^@^E^@^@^@^@^P^@^@^A^@^@^@^@|
> ^N^@^@~P^C@^@^@^@^@^@ ^@^@^@
> ^@^@^F^
> @^@^@^@^P^@^@^A^@^@^@^@^N^@^@^C@^@^@^@^@^@^@^@^@^@
> ^B^@^E^@^@^@^@^P^@^@^A^
> @^@^
> @^@^N^@^@p^F@^@^@^@^@^@0^@^@^@0^@^@^F^@^@^@^@^P^@^@^A^@^@^@^@^N^@^@|
> ^F@^@^@^@
> ^@^@^@^@^@^@@^H^@^E^@^@^@^@^P^@^@^A^@^@^@^@^N^@^@
> ^N@^@^@^@^@^@`^@^@^@`^@^@
> ^F^@
> ^@^@^@^P^@^@^A^@^@^@^@P^O^@^@@^O@^@^@^@^@^@^@^@^@^@0
>
> ^H^@P ^H@
> ^H~T@>^D^@^@^@^@^@^@p^G^@^@^Y^@^@^@^@?@@^@
> ?@H ^HC
> ^H^DE
> ^HЪD
> ^HD
> ^H^@ ^H^@?@Y@~H ^H^@^@^@^@~XD
> ^H^P8 ^H|
> ?@Y@^Q@^@^@^O^@^@Y@/dev/scd0^@Y@~A^M^H`
> ~@B
> ^H8 ^H8 ^HH6~A@ ^HX ^HX ~A@<Z@<Z@X
> 0I@ ^H
> ^HD
> ^H^@^PD
> ^H~XD
> ^H ^H 0~\ ^H~@ ^H^@^@^@^@B
> ^HX~C^M^HЪ~H^B@X~C^M^H]@`^@p~C^M^H~@
> ^H
> ^Hh^D^H8E
> ^H/@^@^@(E
> ^H/@^@^@^@^@^@^@^@^@^@d@^@^@^@^@^@^@^@^@H
> ^E^H^@^@^@^@^@^@^@^
> @,^@
> ^@^@~^@^@^@@~XD
> ^H^X^S^F^HHg@|
> ~B^M^H^L^@^@^@,d^F^@^@^@^@^@@|^@^@^@x;@^@^@^@^@^@
> ^@^@^@^@^@^@^@^@^@^@^@^@| <@^@^@^@^@@^@^@PD
> ^HD
> ^H/@^@D
>
> Eric
> One Unix to rule them all, One Resolver to find them,
> One IP to bring them all and in the zone to bind them.
>
>
>
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