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Thread: Rootkit in Lucid

  1. #1
    Join Date
    Aug 2009
    Location
    UK
    Beans
    204
    Distro
    Ubuntu 10.04 Lucid Lynx

    Rootkit in Lucid

    Hi All,
    Today I purchased UBUNTU User, Issue 6, because of the extended version of Lucid, just to see if it was any different from the version that I was using (downloaded), agreeably there are apps included, that I had to download, but I digress, after installing from disc, I did what they advised and installed "rkhunter", guess what after running the programme it reported two warnings, I never had this with the downloaded version,
    what I am after peeps "what do I do now" this is beyond my ken.

    As always all Ideas, Suggestions and Help greatly appreciated'

  2. #2
    Join Date
    Mar 2010
    Beans
    3

    Re: Rootkit in Lucid

    Write down the warnings.

  3. #3
    Join Date
    Mar 2010
    Beans
    8,249
    Distro
    Ubuntu 10.04 Lucid Lynx

  4. #4
    Join Date
    Aug 2009
    Location
    UK
    Beans
    204
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Rootkit in Lucid

    As Requested



    jim@jim-laptop:~$ sudo sudo rkhunter --check
    [ Rootkit Hunter version 1.3.6 ]

    Checking system commands...

    Performing 'strings' command checks
    Checking 'strings' command [ OK ]

    Performing 'shared libraries' checks
    Checking for preloading variables [ None found ]
    Checking for preloaded libraries [ None found ]
    Checking LD_LIBRARY_PATH variable [ Not found ]

    Performing file properties checks
    Checking for prerequisites [ OK ]
    /bin/bash [ OK ]
    /bin/cat [ OK ]
    /bin/chmod [ OK ]
    /bin/chown [ OK ]
    /bin/cp [ OK ]
    /bin/date [ OK ]
    /bin/df [ OK ]
    /bin/dmesg [ OK ]
    /bin/echo [ OK ]
    /bin/ed [ OK ]
    /bin/egrep [ OK ]
    /bin/fgrep [ OK ]
    /bin/fuser [ OK ]
    /bin/grep [ OK ]
    /bin/ip [ OK ]
    /bin/kill [ OK ]
    /bin/less [ OK ]
    /bin/login [ OK ]
    /bin/ls [ OK ]
    /bin/lsmod [ OK ]
    /bin/mktemp [ OK ]
    /bin/more [ OK ]
    /bin/mount [ OK ]
    /bin/mv [ OK ]
    /bin/netstat [ OK ]
    /bin/ps [ OK ]
    /bin/pwd [ OK ]
    /bin/readlink [ OK ]
    /bin/sed [ OK ]
    /bin/sh [ OK ]
    /bin/su [ OK ]
    /bin/touch [ OK ]
    /bin/uname [ OK ]
    /bin/which [ OK ]
    /bin/dash [ OK ]
    /usr/bin/awk [ OK ]
    /usr/bin/basename [ OK ]
    /usr/bin/chattr [ OK ]
    /usr/bin/cut [ OK ]
    /usr/bin/diff [ OK ]
    /usr/bin/dirname [ OK ]
    /usr/bin/dpkg [ OK ]
    /usr/bin/dpkg-query [ OK ]
    /usr/bin/du [ OK ]
    /usr/bin/env [ OK ]
    /usr/bin/file [ OK ]
    /usr/bin/find [ OK ]
    /usr/bin/GET [ OK ]
    /usr/bin/groups [ OK ]
    /usr/bin/head [ OK ]
    /usr/bin/id [ OK ]
    /usr/bin/killall [ OK ]
    /usr/bin/last [ OK ]
    /usr/bin/lastlog [ OK ]
    /usr/bin/ldd [ OK ]
    /usr/bin/less [ OK ]
    /usr/bin/locate [ OK ]
    /usr/bin/logger [ OK ]
    /usr/bin/lsattr [ OK ]
    /usr/bin/lsof [ OK ]
    /usr/bin/mail [ OK ]
    /usr/bin/md5sum [ OK ]
    /usr/bin/mlocate [ OK ]
    /usr/bin/newgrp [ OK ]
    /usr/bin/passwd [ OK ]
    /usr/bin/perl [ OK ]
    /usr/bin/pgrep [ OK ]
    /usr/bin/pstree [ OK ]
    /usr/bin/rkhunter [ OK ]
    /usr/bin/runcon [ OK ]
    /usr/bin/sha1sum [ OK ]
    /usr/bin/sha224sum [ OK ]
    /usr/bin/sha256sum [ OK ]
    /usr/bin/sha384sum [ OK ]
    /usr/bin/sha512sum [ OK ]
    /usr/bin/size [ OK ]
    /usr/bin/sort [ OK ]
    /usr/bin/stat [ OK ]
    /usr/bin/strace [ OK ]
    /usr/bin/strings [ OK ]
    /usr/bin/sudo [ OK ]
    /usr/bin/tail [ OK ]
    /usr/bin/test [ OK ]
    /usr/bin/top [ OK ]
    /usr/bin/touch [ OK ]
    /usr/bin/tr [ OK ]
    /usr/bin/uniq [ OK ]
    /usr/bin/users [ OK ]
    /usr/bin/vmstat [ OK ]
    /usr/bin/w [ OK ]
    /usr/bin/watch [ OK ]
    /usr/bin/wc [ OK ]
    /usr/bin/wget [ OK ]
    /usr/bin/whatis [ OK ]
    /usr/bin/whereis [ OK ]
    /usr/bin/which [ OK ]
    /usr/bin/who [ OK ]
    /usr/bin/whoami [ OK ]
    /usr/bin/gawk [ OK ]
    /usr/bin/lwp-request [ OK ]
    /usr/bin/bsd-mailx [ OK ]
    /usr/bin/w.procps [ OK ]
    /sbin/depmod [ OK ]
    /sbin/ifconfig [ OK ]
    /sbin/ifdown [ OK ]
    /sbin/ifup [ OK ]
    /sbin/init [ OK ]
    /sbin/insmod [ OK ]
    /sbin/ip [ OK ]
    /sbin/lsmod [ OK ]
    /sbin/modinfo [ OK ]
    /sbin/modprobe [ OK ]
    /sbin/rmmod [ OK ]
    /sbin/runlevel [ OK ]
    /sbin/sulogin [ OK ]
    /sbin/sysctl [ OK ]
    /usr/sbin/adduser [ OK ]
    /usr/sbin/chroot [ OK ]
    /usr/sbin/cron [ OK ]
    /usr/sbin/groupadd [ OK ]
    /usr/sbin/groupdel [ OK ]
    /usr/sbin/groupmod [ OK ]
    /usr/sbin/grpck [ OK ]
    /usr/sbin/nologin [ OK ]
    /usr/sbin/pwck [ OK ]
    /usr/sbin/rsyslogd [ OK ]
    /usr/sbin/tcpd [ OK ]
    /usr/sbin/useradd [ OK ]
    /usr/sbin/userdel [ OK ]
    /usr/sbin/usermod [ OK ]
    /usr/sbin/vipw [ OK ]
    /usr/sbin/unhide-linux26 [ OK ]

    [Press <ENTER> to continue]


    Checking for rootkits...

    Performing check of known rootkit files and directories
    55808 Trojan - Variant A [ Not found ]
    ADM Worm [ Not found ]
    AjaKit Rootkit [ Not found ]
    Adore Rootkit [ Not found ]
    aPa Kit [ Not found ]
    Apache Worm [ Not found ]
    Ambient (ark) Rootkit [ Not found ]
    Balaur Rootkit [ Not found ]
    BeastKit Rootkit [ Not found ]
    beX2 Rootkit [ Not found ]
    BOBKit Rootkit [ Not found ]
    cb Rootkit [ Not found ]
    CiNIK Worm (Slapper.B variant) [ Not found ]
    Danny-Boy's Abuse Kit [ Not found ]
    Devil RootKit [ Not found ]
    Dica-Kit Rootkit [ Not found ]
    Dreams Rootkit [ Not found ]
    Duarawkz Rootkit [ Not found ]
    Enye LKM [ Not found ]
    Flea Linux Rootkit [ Not found ]
    FreeBSD Rootkit [ Not found ]
    Fu Rootkit [ Not found ]
    ****`it Rootkit [ Not found ]
    GasKit Rootkit [ Not found ]
    Heroin LKM [ Not found ]
    HjC Kit [ Not found ]
    ignoKit Rootkit [ Not found ]
    iLLogiC Rootkit [ Not found ]
    IntoXonia-NG Rootkit [ Not found ]
    Irix Rootkit [ Not found ]
    Kitko Rootkit [ Not found ]
    Knark Rootkit [ Not found ]
    ld-linuxv.so Rootkit [ Not found ]
    Li0n Worm [ Not found ]
    Lockit / LJK2 Rootkit [ Not found ]
    Mood-NT Rootkit [ Not found ]
    MRK Rootkit [ Not found ]
    Ni0 Rootkit [ Not found ]
    Ohhara Rootkit [ Not found ]
    Optic Kit (Tux) Worm [ Not found ]
    Oz Rootkit [ Not found ]
    Phalanx Rootkit [ Not found ]
    Phalanx2 Rootkit [ Not found ]
    Phalanx2 Rootkit (extended tests) [ Not found ]
    Portacelo Rootkit [ Not found ]
    R3dstorm Toolkit [ Not found ]
    RH-Sharpe's Rootkit [ Not found ]
    RSHA's Rootkit [ Not found ]
    Scalper Worm [ Not found ]
    Sebek LKM [ Not found ]
    Shutdown Rootkit [ Not found ]
    SHV4 Rootkit [ Not found ]
    SHV5 Rootkit [ Not found ]
    Sin Rootkit [ Not found ]
    Slapper Worm [ Not found ]
    Sneakin Rootkit [ Not found ]
    'Spanish' Rootkit [ Not found ]
    Suckit Rootkit [ Not found ]
    SunOS Rootkit [ Not found ]
    SunOS / NSDAP Rootkit [ Not found ]
    Superkit Rootkit [ Not found ]
    TBD (Telnet BackDoor) [ Not found ]
    TeLeKiT Rootkit [ Not found ]
    T0rn Rootkit [ Not found ]
    trNkit Rootkit [ Not found ]
    Trojanit Kit [ Not found ]
    Tuxtendo Rootkit [ Not found ]
    URK Rootkit [ Not found ]
    Vampire Rootkit [ Not found ]
    VcKit Rootkit [ Not found ]
    Volc Rootkit [ Not found ]
    Xzibit Rootkit [ Not found ]
    X-Org SunOS Rootkit [ Not found ]
    zaRwT.KiT Rootkit [ Not found ]
    ZK Rootkit [ Not found ]

    Performing additional rootkit checks
    Suckit Rookit additional checks [ OK ]
    Checking for possible rootkit files and directories [ None found ]
    Checking for possible rootkit strings [ None found ]

    Performing malware checks
    Checking running processes for suspicious files [ None found ]
    Checking for login backdoors [ None found ]
    Checking for suspicious directories [ None found ]
    Checking for sniffer log files [ None found ]

    Performing Linux specific checks
    Checking loaded kernel modules [ OK ]
    Checking kernel module names [ OK ]

    [Press <ENTER> to continue]


    Checking the network...

    Performing check for backdoor ports
    Checking for TCP port 1524 [ Not found ]
    Checking for TCP port 1984 [ Not found ]
    Checking for UDP port 2001 [ Not found ]
    Checking for TCP port 2006 [ Not found ]
    Checking for TCP port 2128 [ Not found ]
    Checking for TCP port 6666 [ Not found ]
    Checking for TCP port 6667 [ Not found ]
    Checking for TCP port 6668 [ Not found ]
    Checking for TCP port 6669 [ Not found ]
    Checking for TCP port 7000 [ Not found ]
    Checking for TCP port 13000 [ Not found ]
    Checking for TCP port 14856 [ Not found ]
    Checking for TCP port 25000 [ Not found ]
    Checking for TCP port 29812 [ Not found ]
    Checking for TCP port 31337 [ Not found ]
    Checking for TCP port 33369 [ Not found ]
    Checking for TCP port 47107 [ Not found ]
    Checking for TCP port 47018 [ Not found ]
    Checking for TCP port 60922 [ Not found ]
    Checking for TCP port 62883 [ Not found ]
    Checking for TCP port 65535 [ Not found ]

    Performing checks on the network interfaces
    Checking for promiscuous interfaces [ None found ]

    [Press <ENTER> to continue]


    Checking the local host...

    Performing system boot checks
    Checking for local host name [ Found ]
    Checking for system startup files [ Found ]
    Checking system startup files for malware [ None found ]

    Performing group and account checks
    Checking for passwd file [ Found ]
    Checking for root equivalent (UID 0) accounts [ None found ]
    Checking for passwordless accounts [ None found ]
    Checking for passwd file changes [ None found ]
    Checking for group file changes [ None found ]
    Checking root account shell history files [ None found ]

    Performing system configuration file checks
    Checking for SSH configuration file [ Not found ]
    Checking for running syslog daemon [ Found ]
    Checking for syslog configuration file [ Found ]
    Checking if syslog remote logging is allowed [ Not allowed ]

    Performing filesystem checks
    Checking /dev for suspicious file types [ Warning ]
    Checking for hidden files and directories [ Warning ]

    [Press <ENTER> to continue]



    System checks summary
    =====================

    File properties checks...
    Files checked: 132
    Suspect files: 0

    Rootkit checks...
    Rootkits checked : 242
    Possible rootkits: 0

    Applications checks...
    All checks skipped

    The system checks took: 2 minutes and 57 seconds

    All results have been written to the log file (/var/log/rkhunter.log)

    One or more warnings have been found while checking the system.
    Please check the log file (/var/log/rkhunter.log)

    jim@jim-laptop:~$

  5. #5
    Join Date
    Mar 2010
    Beans
    8,249
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Rootkit in Lucid

    What exactly are you concerned about?

    Did you check the log?

    Are you aware that tools like rkhunter produce false positives?

    Did you Google for any anomalies?

    File system warnings with rkhunter are quite frequent because file properties change.

    It is not necessarily a rootkit or anything else, just the program telling you to check IF something might be wrong.

    You know your system better than anyone else, and can tell if something has changed recently.

  6. #6
    Join Date
    Mar 2010
    Beans
    3

    Re: Rootkit in Lucid

    Check warnings in /var/log/rkhunter.log but I think there is no reason to worry about that.

  7. #7
    rollin is offline Gee! These Aren't Roasted!
    Join Date
    Jun 2010
    Beans
    153

    Re: Rootkit in Lucid

    The log is just a copy of the verbose output posted. The only "Found" references I can see are these:

    Checking for local host name [ Found ]
    Checking for system startup files [ Found ]
    Checking for running syslog daemon [ Found ]
    Checking for syslog configuration file [ Found ]

    These are part of the system installation and nothing to worry about.

  8. #8
    Join Date
    Mar 2006
    Location
    Kitakyushu Japan
    Beans
    9,361
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Rootkit in Lucid

    Quote Originally Posted by jimmers View Post
    Code:
    System checks summary
    =====================
    
    File properties checks...
        Files checked: 132
        Suspect files: 0
    
    Rootkit checks...
        Rootkits checked : 242
        Possible rootkits: 0
    
    Applications checks...
        All checks skipped
    
    The system checks took: 2 minutes and 57 seconds
    
    All results have been written to the log file (/var/log/rkhunter.log)
    
    One or more warnings have been found while checking the system.
    Please check the log file (/var/log/rkhunter.log)
    
    jim@jim-laptop:~$
    Looks clean to me.

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