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 :: Mailing Lists

[ILUG] Bad EIP value due to compromise

[ILUG] Bad EIP value due to compromise

Paul Jakma paul at clubi.ie
Tue Aug 24 17:10:40 IST 2004


On Tue, 24 Aug 2004, Brendan Halpin wrote:

> Update: replacing /sbin/init with /sbin/initsk12 (byte-identical to 
> original) "solves" the EIP oops. This allows chkrootkit to run 
> fully, and to find no problems. Can I consider this machine OK now? 
> There certainly was a breakin (via user test), and a privilege 
> escalation to allow the insertion of the compromised (and buggy) 
> init file, and of /usr/lib/.ss/sk (SucKIT).

Hard to trust a machine after a breakin without either reinstalling 
all binaries or comparing digests of all binaries to a known good 
system. (and even that is difficult on systems like Fedora that do 
prelinking).

> Brendan

regards,
-- 
Paul Jakma	paul at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
"Danger, you haven't seen the last of me!"
    "No, but the first of you turns my stomach!"
-- The Firesign Theatre's Nick Danger



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