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Full Version: Rootkit Hunter found some bad or unknown hashes
The Planet Forums > Security > General Security > UNIX Security
TheUniverses
QUOTE
Rootkit Hunter 1.2.8 is running

Determining OS... Ready


Checking binaries
* Selftests
    Strings (command)     [ OK ]


* System tools
 Performing 'known good' check...
  /bin/cat  [ OK ]
  /bin/chmod  [ OK ]
  /bin/chown  [ OK ]
  /bin/dmesg  [ OK ]
  /bin/egrep  [ OK ]
  /bin/env  [ OK ]
  /bin/fgrep  [ OK ]
  /bin/grep  [ OK ]
  /bin/kill  [ OK ]
  /bin/login  [ OK ]
  /bin/ls  [ OK ]
  /bin/mount  [ OK ]
  /bin/netstat  [ OK ]
  /bin/ps  [ OK ]
  /bin/su  [ OK ]
  /sbin/chkconfig  [ BAD ]
  /sbin/depmod  [ BAD ]
  /sbin/ifconfig  [ OK ]
  /sbin/init  [ OK ]
  /sbin/insmod  [ BAD ]
  /sbin/modinfo  [ BAD ]
  /sbin/runlevel  [ OK ]
  /sbin/sysctl  [ OK ]
  /sbin/syslogd  [ OK ]
  /usr/bin/file  [ OK ]
  /usr/bin/find  [ BAD ]
  /usr/bin/groups  [ OK ]
  /usr/bin/kill  [ OK ]
  /usr/bin/killall  [ OK ]
  /usr/bin/lsattr  [ OK ]
  /usr/bin/pstree  [ OK ]
  /usr/bin/sha1sum  [ OK ]
  /usr/bin/stat  [ OK ]
  /usr/bin/users  [ OK ]
  /usr/bin/w  [ OK ]
  /usr/bin/watch  [ OK ]
  /usr/bin/who  [ OK ]
  /usr/bin/whoami  [ OK ]
--------------------------------------------------------------------------------
Rootkit Hunter found some bad or unknown hashes. This can be happen due  
replaced
binaries or updated packages (which give other hashes). Be sure your  
hashes are
fully updated (rkhunter --update). If you're in doubt about these  
hashes, contact
the author (fill in the contact form).
--------------------------------------------------------------------------------


Check rootkits
* Default files and directories
  Rootkit '55808 Trojan - Variant A'...   [ OK ]
  ADM Worm...   [ OK ]
  Rootkit 'AjaKit'...   [ OK ]
  Rootkit 'aPa Kit'...   [ OK ]
  Rootkit 'Apache Worm'...   [ OK ]
  Rootkit 'Ambient (ark) Rootkit'...   [ OK ]
  Rootkit 'Balaur Rootkit'...   [ OK ]
  Rootkit 'BeastKit'...   [ OK ]
  Rootkit 'beX2'...   [ OK ]
  Rootkit 'BOBKit'...   [ OK ]
  Rootkit 'CiNIK Worm (Slapper.B variant)'...   [ OK ]
  Rootkit 'Danny-Boy's Abuse Kit'...   [ OK ]
  Rootkit 'Devil RootKit'...   [ OK ]
  Rootkit 'Dica'...   [ OK ]
  Rootkit 'Dreams Rootkit'...   [ OK ]
  Rootkit 'Duarawkz'...   [ OK ]
  Rootkit 'Flea Linux Rootkit'...   [ OK ]
  Rootkit 'FreeBSD Rootkit'...   [ OK ]
  Rootkit 'f***`it Rootkit'...   [ OK ]
  Rootkit 'GasKit'...   [ OK ]
  Rootkit 'Heroin LKM'...   [ OK ]
  Rootkit 'HjC Kit'...   [ OK ]
  Rootkit 'ignoKit'...   [ OK ]
  Rootkit 'ImperalsS-FBRK'...   [ OK ]
  Rootkit 'Irix Rootkit'...   [ OK ]
  Rootkit 'Kitko'...   [ OK ]
  Rootkit 'Knark'...   [ OK ]
  Rootkit 'Li0n Worm'...   [ OK ]
  Rootkit 'Lockit / LJK2'...   [ OK ]
  Rootkit 'MRK'...   [ OK ]
  Rootkit 'Ni0 Rootkit'...   [ OK ]
  Rootkit 'RootKit for SunOS / NSDAP'...   [ OK ]
  Rootkit 'Optic Kit (Tux)'...   [ OK ]
  Rootkit 'Oz Rootkit'...   [ OK ]
  Rootkit 'Portacelo'...   [ OK ]
  Rootkit 'R3dstorm Toolkit'...   [ OK ]
  Rootkit 'RH-Sharpe's rootkit'...   [ OK ]
  Rootkit 'RSHA's rootkit'...   [ OK ]
  Sebek LKM  [ OK ]
  Rootkit 'Scalper Worm'...   [ OK ]
  Rootkit 'Shutdown'...   [ OK ]
  Rootkit 'SHV4'...   [ OK ]
  Rootkit 'SHV5'...   [ OK ]
  Rootkit 'Sin Rootkit'...   [ OK ]
  Rootkit 'Slapper'...   [ OK ]
  Rootkit 'Sneakin Rootkit'...   [ OK ]
  Rootkit 'Suckit Rootkit'...   [ OK ]
  Rootkit 'SunOS Rootkit'...   [ OK ]
  Rootkit 'Superkit'...   [ OK ]
  Rootkit 'TBD (Telnet BackDoor)'...   [ OK ]
  Rootkit 'TeLeKiT'...   [ OK ]
  Rootkit 'T0rn Rootkit'...   [ OK ]
  Rootkit 'Trojanit Kit'...   [ OK ]
  Rootkit 'Tuxtendo'...   [ OK ]
  Rootkit 'URK'...   [ OK ]
  Rootkit 'VcKit'...   [ OK ]
  Rootkit 'Volc Rootkit'...   [ OK ]
  Rootkit 'X-Org SunOS Rootkit'...   [ OK ]
  Rootkit 'zaRwT.KiT Rootkit'...   [ OK ]

* Suspicious files and malware
  Scanning for known rootkit strings  [ OK ]
  Scanning for known rootkit files  [ OK ]
  Testing running processes...   [ OK ]
  Miscellaneous Login backdoors  [ OK ]
  Miscellaneous directories  [ OK ]
  Software related files  [ OK ]
  Sniffer logs  [ OK ]

* Trojan specific characteristics
  shv4
    Checking /etc/rc.d/rc.sysinit
      Test 1  [ Clean ]
      Test 2  [ Clean ]
      Test 3  [ Clean ]
    Checking /etc/inetd.conf  [ Not found ]
    Checking /etc/xinetd.conf  [ Clean ]

* Suspicious file properties
  chmod properties
    Checking /bin/ps  [ Clean ]
    Checking /bin/ls  [ Clean ]
    Checking /usr/bin/w  [ Clean ]
    Checking /usr/bin/who  [ Clean ]
    Checking /bin/netstat  [ Clean ]
    Checking /bin/login  [ Clean ]
  Script replacements
    Checking /bin/ps  [ Clean ]
    Checking /bin/ls  [ Clean ]
    Checking /usr/bin/w  [ Clean ]
    Checking /usr/bin/who  [ Clean ]
    Checking /bin/netstat  [ Clean ]
    Checking /bin/login  [ Clean ]

* OS dependant tests

  Linux
    Checking loaded kernel modules...   [ OK ]
    Checking files attributes  [ OK ]
    Checking LKM module path  [ OK ]


Networking
* Check: frequently used backdoors
 Port 2001: Scalper Rootkit  [ OK ]
 Port 2006: CB Rootkit  [ OK ]
 Port 2128: MRK  [ OK ]
 Port 14856: Optic Kit (Tux)  [ OK ]
 Port 47107: T0rn Rootkit  [ OK ]
 Port 60922: zaRwT.KiT  [ OK ]

* Interfaces
    Scanning for promiscuous interfaces  [ OK ]


System checks
* Allround tests
  Checking hostname... Found. Hostname is server.theuniverses.com
  Checking for passwordless user accounts... OK
  Checking for differences in user accounts... OK. No changes.
  Checking for differences in user groups... OK. No changes.
  Checking boot.local/rc.local file...  
    - /etc/rc.local  [ OK ]
    - /etc/rc.d/rc.local  [ OK ]
    - /usr/local/etc/rc.local  [ Not found ]
    - /usr/local/etc/rc.d/rc.local  [ Not found ]
    - /etc/conf.d/local.start  [ Not found ]
    - /etc/init.d/boot.local  [ Not found ]
  Checking rc.d files...  
    Processing........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              ........................................
              .....................................
  Result rc.d files check  [ OK ]
  Checking history files
    Bourne Shell  [ OK ]

* Filesystem checks
  Checking /dev for suspicious files...   [ OK ]
  Scanning for hidden files...  [ Warning! ]
---------------
/etc/.pwd.lock
/etc/.java
---------------
Please inspect:  /etc/.java (directory)  


Application advisories
* Application scan
  Checking Apache2 modules ...      [ Not found ]
  Checking Apache configuration ...      [ OK ]

* Application version scan
  - GnuPG 1.2.1   [ Old or patched version ]
  - Apache 2.0.46   [ Old or patched version ]
  - Bind DNS 9.2.4   [ OK ]
  - OpenSSL 0.9.7a   [ Old or patched version ]
  - PHP 4.4.2   [ OK ]
  - Procmail MTA 3.22   [ OK ]
  - ProFTPd 1.2.10   [ OK ]
  - OpenSSH 3.9.0p1   [ OK ]



Security advisories
* Check: Groups and Accounts
  Searching for /etc/passwd...   [ Found ]
  Checking users with UID '0' (root)...   [ OK ]

* Check: SSH
  Searching for sshd_config...  
  Found /etc/ssh/sshd_config
  Checking for allowed root login... Watch out Root login possible.  
Possible risk!
   info: PermitRootLogin yes
   Hint: See logfile for more information about this issue
  Checking for allowed protocols...   [ OK (Only SSH2 allowed) ]

* Check: Events and Logging
  Search for syslog configuration...   [ OK ]
  Checking for running syslog slave...   [ OK ]
  Checking for logging to remote system...   [ OK (no remote logging)  
]


---------------------------- Scan results ----------------------------

MD5
MD5 compared: 119
Incorrect MD5 checksums: 5

File scan
Scanned files: 342
Possible infected files: 0

Application scan
Vulnerable applications: 3

Scanning took 74 seconds


Should I be worried that something got compromised or could it just be that those binaries were updated but RKHunter's sig files havent been?
Thanks in advance.
Blue|Fusion
Same thing on multiple RHEL3 boxes...and other people mentioned it, too. Don't worry about it for the time being.
TheUniverses
Thanks, keep up the great work on ELS!
TheUniverses
Ok, now CHKrootkit is giving me this

Checking `bindshell'... warning, got bogus tcp line.
INFECTED (PORTS: 465)
Checking `lkm'... You have 2 process hidden for readdir command
You have 2 process hidden for ps command
chkproc: Warning: Possible LKM Trojan installed

The bindshell is not correct, its not bindshell thats running on there. I know SMTPs is running on that.
But lkm? I didnt see that before, so I'm wondering what that is about.

Any help is appreciated.
TheUniverses
Never mind, false positive.
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