Hacked or not ?

jon.mercer at achean.com jon.mercer at achean.com
Sat Jun 12 12:02:01 GMT 2004


I have seen this as well, it is most likely a false positive.
Additionally, slower or more heavily loaded machines seem more likely to
generate false positive for LKM.

As a side note, there really ought to be a way for admins to double check
the output from chkrootkit Google helps little. Any offers..?

Jon

> Hi all,
>
> please advice me - I was on holidays for one week. After return I found
in security mails from router (chkrootkit) following message:
> Checking `lkm'... You have     1 process hidden for readdir command You
have     1 process hidden for ps command
> Warning: Possible LKM Trojan installed
>
> It apeared only onece. From previous and next days reports, the message
is not present.
>
> How could I be sure, the machine is not hacked ?
>
> Many thanks for any response.
>
> Peter Rosa
>
>
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