On Mon, May 22, 2000 at 02:59:01 -0700, Alfred Perlstein wrote:
> * Shadi Fazelian <[EMAIL PROTECTED]> [000522 02:31] wrote:
> > Hello.
> > please guide me:
> > 1- how I can see a hidden file (not dot file) and how
> > I can hidden a file ?
> > my mean: I want make a file that ls -al can't see it.
>
> impossible(*) afaik.
>
> >
> > 2- how I can write somthing in a file that nobody can
> > see them
> > my mean: in crontab adding some command that this is
> > hidden.
>
> impossible(*) afaik.
>
> >
> > 3- how I can run somthing in background that ps can't
> > see it.
>
> impossible(*) afaik.
>
> >
> > please guide me. hackeres attack my servers and I
> > don't know how he/she can.
>
> (*) see: http://www.rootkit.com/
> and: http://www.rootkit.com/whitepapers.shtml
>
1- and 3- are possible, if the attacker can change the installed versions of
ls and ps to his own, compromised versions.
Regards
--
Udo Schweigert, Siemens AG | Voice : +49 89 636 42170
ZT IK 3, Siemens CERT | Fax : +49 89 636 41166
D-81730 Muenchen / Germany | email : [EMAIL PROTECTED]
PGP-2/5 fingerprint | D8 A5 DF 34 EC 87 E8 C6 E2 26 C4 D0 EE 80 36 B2
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
