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Topic: Analysis of a Linux Hack
trog
AGN Admin
Posts: 21378
Location: Brisbane, Queensland

Someone's done an interesting analysis of a Linux box that got compromised and used as a zombie box. If you're into Linux it's worth a read to see how a box can get owned and what to look out for.
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Freewheelin
Posts: 1076
Location: Brisbane, Queensland
i didnt really understand all of the commands used etc, but he explains very clearly what was going on. that was a really good read
Woha! The box had been cracked alright! I found this quite exciting, but obviously, my friend did not.

heh
Spook
Posts: 19347
Location: Brisbane, Queensland
that was interesting
TicMan
Posts: 2483
Location: Brisbane, Queensland
Interesting but just seems what every other trojan/backdoor problem regardless of OS would do. Install itself, add hacked system files, etc. I'm wondering how it got comprimised in the first place though, that'd be the most interesting information.

Was it a simple root password, stupid sysadmin giving out free shell accounts or so on..
gimpy
Posts: 1666
Location: Brisbane, Queensland
Sendmail (prior to Sendmail 8.6.10) was no doubt the cause of this hack.
ara
Posts: 1246
Location: Sydney, New South Wales

i use to keep a little tar ball of ls, ps, top, netstat and ifconfig to investigate this kind of thing.

a md5 on those binaries would show up inconsistancies since most root kits replace them instead of modifying the kernel as it is a quicker and easier path.

my money is it was from php-nuke or some such dodgey CMS.
TicMan
Posts: 2484
Location: Brisbane, Queensland
gimpy's probably right, only newbs run Sendmail.
gimpy
Posts: 1667
Location: Brisbane, Queensland
that's what ya mum said, right after i made love to her

our faces were like this :O :O
Opec
Posts: 4677
Location: Brisbane, Queensland
Interesting read
Obes
Posts: 5385
Location: Brisbane, Queensland
I have experienced a top leveling hacking group at work from the wrong side. Starting around 7pm on a Friday, all finished by Monday. They got in via a new BIND vulnerability, using a hacked webserver at the Argentinian version of Telstra. Then procedign to go after security and military server in Canada and the US.

First I knew of it was a phone call from the AFP on the Thursday after it, in conference with the DNDCF (or some acronym like that ie. Canadian Military), Pentagon and FBI. Long story hours on the phone.

Then a day latter some guys from Cert AU rang and helped me to clean it up and they got the info they needed to work out how they cracked BIND.

*shrug*
Scorp
Posts: 26
Location: Brisbane, Queensland
Christ, this is probably one of the best non-gaming related news ports on QGL. Thanks for posting this! VERY INTERESTING!
Raven
Posts: 2072
Location: Melbourne, Victoria
Interesting read

Interesting skim. Not really what I would call interesting as a read :)
Jim
Posts: 6356
Location: Brisbane, Queensland
tah, I was wondering whether or not raven would call it an interesting read
system
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