Date: 20 May 2003 21:45:35 +0200 From: Guy Van Sanden <n.b@myrealbox.com> To: freebsd-questions@freebsd.org Subject: HELP - Rootkit - add info Message-ID: <1053459934.2959.224.camel@cronos.home.vsb>
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I forgot to mention some basic stuff (the idea that my box could be hacked scares the living daylight out of me). I run FreeBSD 5.0-RELEASE (patches applied) the md5sums of the files in question match those on knowngoods.org (of course md5 could be hacked as well). Last does not report any strange connections, and I can't find anything on my firewall that indicates this too. I ran aide (against an old database), and it doesn't report these files as changed either (which also is inconclusive). I'm currently running clamscan on everything, but thats going to take a while. Thanks for any help -----Forwarded Message----- From: Guy Van Sanden <n.b@myrealbox.com> To: freebsd-questions@freebsd.org Subject: HELP - Rootkit Date: 20 May 2003 21:18:38 +0200 I found some strange files in /stand namely -sh and [ This got me somewhat suspicious, so I installed chkrootkit. It says: Checking `chfn'... INFECTED Checking `chsh'... INFECTED Checking `cron'... not infected Checking `date'... INFECTED Checking `ls'... INFECTED Checking `ps'... INFECTED Checking `lkm'... You have 9 process hidden for ps command Warning: Possible LKM Trojan installed Does this mean I got hacked? Thanks for any help -- Complete output -- Checking `amd'... not infected Checking `basename'... not infected Checking `biff'... not infected Checking `chfn'... INFECTED Checking `chsh'... INFECTED Checking `cron'... not infected Checking `date'... INFECTED Checking `du'... not infected Checking `dirname'... not infected Checking `echo'... not infected Checking `egrep'... not infected Checking `env'... not infected Checking `find'... not infected Checking `fingerd'... not infected Checking `gpm'... not found Checking `grep'... not infected Checking `hdparm'... not found Checking `su'... not infected Checking `ifconfig'... not infected Checking `inetd'... not infected Checking `inetdconf'... not infected Checking `identd'... not found Checking `init'... not infected Checking `killall'... not infected Checking `ldsopreload'... not tested Checking `login'... not infected Checking `ls'... INFECTED Checking `lsof'... not found Checking `mail'... not infected Checking `mingetty'... not found Checking `netstat'... not infected Checking `named'... not infected Checking `passwd'... not infected Checking `pidof'... not found Checking `pop2'... not found Checking `pop3'... not found Checking `ps'... INFECTED Checking `pstree'... not found Checking `rpcinfo'... not infected Checking `rlogind'... not infected Checking `rshd'... not infected Checking `slogin'... not infected Checking `sendmail'... not infected Checking `sshd'... not infected Checking `syslogd'... not infected Checking `tar'... not infected Checking `tcpd'... not infected Checking `tcpdump'... not infected Checking `top'... not infected Checking `telnetd'... not infected Checking `timed'... not infected Checking `traceroute'... not infected Checking `w'... not infected Checking `write'... not infected Checking `aliens'... no suspect files Searching for sniffer's logs, it may take a while... nothing found Searching for HiDrootkit's default dir... nothing found Searching for t0rn's default files and dirs... nothing found Searching for t0rn's v8 defaults... nothing found Searching for Lion Worm default files and dirs... nothing found Searching for RSHA's default files and dir... nothing found Searching for RH-Sharpe's default files... nothing found Searching for Ambient's rootkit (ark) default files and dirs... nothing found Searching for suspicious files and dirs, it may take a while... nothing found Searching for LPD Worm files and dirs... nothing found Searching for Ramen Worm files and dirs... nothing found Searching for Maniac files and dirs... nothing found Searching for RK17 files and dirs... nothing found Searching for Ducoci rootkit... nothing found Searching for Adore Worm... nothing found Searching for ShitC Worm... nothing found Searching for Omega Worm... nothing found Searching for Sadmind/IIS Worm... nothing found Searching for MonKit... nothing found Searching for Showtee... nothing found Searching for OpticKit... nothing found Searching for T.R.K... nothing found Searching for Mithra... nothing found Searching for OBSD rk v1... nothing found Searching for LOC rootkit ... nothing found Searching for Romanian rootkit ... nothing found Searching for anomalies in shell history files... nothing found Checking `asp'... not infected Checking `bindshell'... not infected Checking `lkm'... You have 9 process hidden for ps command Warning: Possible LKM Trojan installed Checking `rexedcs'... not found Checking `sniffer'... xl0 is not promisc Checking `wted'... nothing deleted Checking `scalper'... not infected Checking `slapper'... not infected Checking `z2'... nothing deleted
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