Date: Fri, 13 May 2005 11:51:12 +1000 From: "Drew B. [Security Expertise/Freelance Security research]." <d4rkstorm@gmail.com> To: Matt Piechota <piechota@argolis.org> Cc: freebsd-security@freebsd.org Subject: Re: Do I have an infected init file? Message-ID: <245f0df105051218514285cc49@mail.gmail.com> In-Reply-To: <20050512160348.J38870@acropolis.argolis.org> References: <20050512163806.98442.qmail@web20424.mail.yahoo.com> <20050512160348.J38870@acropolis.argolis.org>
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Hello, I have used rootkit-hunter for Bsd, it can download MD5sums from whitehat which contains 'current' sigs, not that this matters, it only takes a good packagee,(ie file is encrypted, to bypass any rootkit revealer etc) However i do recommend rootkit-hunter, http://www.rootkit.nl ,it just runs when needed, (/rkhunter -c, /rkhunter --update), and it does a VERY thorough job, I recommend runing it without update forst,then update it, you will no doubt find some multiple package installs, wich seems to be a major problem with this, older package info staying in root,after package is updated. Hope this info is of any help, i can provide a detailed log of a rootkithunter.log..just ask me to attach a copy. Regards, Drew B. On 5/13/05, Matt Piechota <piechota@argolis.org> wrote: > On Thu, 12 May 2005, DH wrote: >=20 > > I'm running a FreeBSD 4.10-release-p2 box and both chkrootkit 0.44 & > > 0.45 report that my /sbin/init file is infected. >=20 > I should mention that 4.10-release is up to p13. You should really think > about patching up to current. >=20 > > It appears as though the egrep for "UPX" in the output of "strings" > > triggers the infected notice. When I copy the init file from an > > uninfected box to this one chkrootkit continues to report it as > > infected. Is chkrootkit reading a copy of the /sbin/init file stored in > > active memory? If my machine is compromised, which rootkit is installed > > / how can I find out which rootkit is installed? >=20 > The easiest way to figure out if you are rooted is probably to download o= r > create a clean version of /sbin/init, and compare the two files. > Creating might take some work, you'd have to install a clean 4.10, patch > it to p2, and make world. >=20 > -- > Matt Piechota > Key Available from pgp.mit.edu > PGP Key fingerprint =3D FC90 4D65 2F8A 38E9 D1A8 FABB 7AE8 C194 5EC8 9CA= D > _______________________________________________ > freebsd-security@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security > To unsubscribe, send any mail to "freebsd-security-unsubscribe@freebsd.or= g" >=20 --=20 ------------------------------------------ Drew B. /* Security researcher/expert,threat-focus,Freelance */ ------------------------------------------
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