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On Sunday 16 July 2006 21:54, Dave S wrote: |
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> On Sunday 16 July 2006 19:54, Hemmann, Volker Armin wrote: |
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> > On Sunday 16 July 2006 20:25, Dave S wrote: |
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> > > HI, I have a potential security problem ... |
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> > > |
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> > > and err its not on gentoo, its on ubuntu but I am not getting any |
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> > > response there & you guys are the most tech bunch I know - Thought I |
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> > > would lay it on the table :) |
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> > > |
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> > > I just had an email from chkrootkit last night - |
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> > > |
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> > > --- |
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> > > |
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> > > The following suspicious files and directories were found: |
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> > > |
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> > > You have 3 process hidden for readdir command |
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> > > You have 3 process hidden for ps command |
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> > > chkproc: Warning: Possible LKM Trojan installed |
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> > > |
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> > > --- |
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> > > |
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> > > Running chkrootkit now and all is OK |
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> > > |
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> > > root@dave-comp:~# |
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> > > root@dave-comp:~# chkrootkit | grep chkproc |
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> > > Checking `lkm'... chkproc: nothing detected |
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> > > root@dave-comp:~# |
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> > > |
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> > > I have even 'sudo install --reinstall chkrootkit' in case its binarys |
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> > > have been modified (paranoid) |
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> > |
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> > if you installed using the tools of the system, it could be worthless, |
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> > because compromised. Boot from a cd and check from the cd. |
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> |
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> I understand. Booted from knoppix 5.0.1, executed a |
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> |
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> 'chroot /mnt/hda1 chkrootkit' and a |
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> 'chroot /mnt/hda1 rkhunter -c' |
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> |
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> - both scans brought back nothing. From what I have read the chkrootkit & |
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> rkhunter binarys would have been from the CD and therefore untainted ? Am I |
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> correct ? |
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> |
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|
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no, if you chroot, the binaries from the chroot are used. |
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|
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use chkrootkit without chrooting - best with full path (/usr/sbin/chkrootkit) |
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