[Инструкция] Проверяем Ubuntu Linux на наличие руткитов.

[Serberg]

Для начала запускаем териминал или подключаеся к серверу через SSH. Вам предложат залогиниться, после этого появляется информация о состоянии системы:

  System information as of Mon Jun 14 11:00:01 CEST 2010

  System load:  3.73               Swap usage:  0%     Users logged in: 0
  Usage of /:   4.7% of 141.91GB   Temperature: 48 C
  Memory usage: 51%                Processes:   118

  Graph this data and manage this system at https://landscape.canonical.com/

48 packages can be updated.
82 updates are security updates.

Теперь ставим утилиту chkrootkit командой:

sudo apt-get install chkrootkit

Появляется диалог следующего типа:

root@sds:~# sudo apt-get install chkrootkit
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  binutils
Suggested packages:
  binutils-doc
The following NEW packages will be installed:
  binutils chkrootkit
0 upgraded, 2 newly installed, 0 to remove and 43 not upgraded.
Need to get 1853kB of archives.
After this operation, 9515kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 ftp://mirror.hetzner.de jaunty/main binutils 2.19.1-0ubuntu3 [1554kB]
Get:2 ftp://mirror.hetzner.de jaunty/main chkrootkit 0.48-9 [299kB]
Fetched 1853kB in 0s (3979kB/s)
Preconfiguring packages ...
Selecting previously deselected package binutils.
(Reading database ... 32078 files and directories currently installed.)
Unpacking binutils (from .../binutils_2.19.1-0ubuntu3_i386.deb) ...
Selecting previously deselected package chkrootkit.
Unpacking chkrootkit (from .../chkrootkit_0.48-9_i386.deb) ...
Processing triggers for man-db ...
Setting up binutils (2.19.1-0ubuntu3) ...

Setting up chkrootkit (0.48-9) ...

Processing triggers for libc6 ...
ldconfig deferred processing now taking place

После установки нужно запустить проверку системы на руткиты командой:

sudo chkrootkit

После появляется информация о проверке системы:

root@sds:~# sudo chkrootkit
ROOTDIR is `/'
Checking `amd'...                                           not found
Checking `basename'...                                      not infected
Checking `biff'...                                          not found
Checking `chfn'...                                          not infected
Checking `chsh'...                                          not infected
Checking `cron'...                                          not infected
Checking `crontab'...                                       not infected
Checking `date'...                                          not 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 found
Checking `gpm'...                                           not found
Checking `grep'...                                          not infected
Checking `hdparm'...                                        not infected
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 infected
Checking `login'...                                         not infected
Checking `ls'...                                            not infected
Checking `lsof'...                                          not infected
Checking `mail'...                                          not infected
Checking `mingetty'...                                      not found
Checking `netstat'...                                       not infected
Checking `named'...                                         not infected
Checking `passwd'...                                        not infected
Checking `pidof'...                                         not infected
Checking `pop2'...                                          not found
Checking `pop3'...                                          not found
Checking `ps'...                                            not infected
Checking `pstree'...                                        not infected
Checking `rpcinfo'...                                       not infected
Checking `rlogind'...                                       not found
Checking `rshd'...                                          not found
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 found
Checking `timed'...                                         not found
Checking `traceroute'...                                    not found
Checking `vdir'...                                          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 rootkit HiDrootkit's default files...         nothing found
Searching for rootkit t0rn's default files...               nothing found
Searching for t0rn's v8 defaults...                         nothing found
Searching for rootkit Lion's default files...               nothing found
Searching for rootkit RSHA's default files...               nothing found
Searching for rootkit 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...
/lib/init/rw/.ramfs /lib/modules/2.6.28-15-server/volatile/.mounted

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 LOC rootkit...                                nothing found
Searching for Romanian rootkit...                           nothing found
Searching for Suckit rootkit...                             nothing found
Searching for Volc rootkit...                               nothing found
Searching for Gold2 rootkit...                              nothing found
Searching for TC2 Worm default files and dirs...            nothing found
Searching for Anonoying rootkit default files and dirs...   nothing found
Searching for ZK rootkit default files and dirs...          nothing found
Searching for ShKit rootkit default files and dirs...       nothing found
Searching for AjaKit rootkit default files and dirs...      nothing found
Searching for zaRwT rootkit default files and dirs...       nothing found
Searching for Madalin rootkit default files...              nothing found
Searching for Fu rootkit default files...                   nothing found
Searching for ESRK rootkit default files...                 nothing found
Searching for rootedoor...                                  nothing found
Searching for ENYELKM rootkit default files...              nothing found
Searching for common ssh-scanners default files...          nothing found
Searching for anomalies in shell history files...           nothing found
Checking `asp'...                                           not infected
Checking `bindshell'...                                     not infected
Checking `lkm'...                                           chkproc: nothing detected
chkdirs: nothing detected
Checking `rexedcs'...                                       not found
Checking `sniffer'...                                       lo: not promisc and no packet sniffer sockets
eth0: not promisc and no packet sniffer sockets
Checking `w55808'...                                        not infected
Checking `wted'...                                          chkwtmp: nothing deleted
Checking `scalper'...                                       not infected
Checking `slapper'...                                       not infected
Checking `z2'...                                            chklastlog: nothing deleted
root@sds:~# `bindshell'...                                     not infected
> Checking `lkm'...                                           chkproc: nothing detected
> chkdirs: nothing detected
> Checking `rexedcs'...                                       not found
-bash: command substitution: line 1: unexpected EOF while looking for matching `''
-bash: command substitution: line 3: syntax error: unexpected end of file
Checking `sniffer'...                                       lo: not promisc and no packet sniffer sockets
eth0: not promisc and no packet sniffer sockets
Checking `w55808'...                                        not infected
Checking `wted'...                                          chkwtmp: nothing deleted
Checking `scalper'...                                       not infected
Checking `slapper'...                                       not infected
Checking `z2'...                                            chklastlog: nothing deleted
root@sds:~#
-bash: lkm...                                           chkproc: nothing detected
chkdirs: nothing detected
Checking `rexedcs...: command not found
root@sds:~# Checking `sniffer'...                                       lo: not promisc and no packet sniffer sockets
> eth0: not promisc and no packet sniffer sockets
> Checking `w55808'...                                        not infected
> Checking `wted'...                                          chkwtmp: nothing deleted

-bash: command substitution: line 3: syntax error: unexpected end of file
-bash: Checking: command not found
root@sds:~# root@sds:~#
-bash: root@sds:~#: command not found
root@sds:~#

Ничего не найдено - можно спокойно вздохнуть и закрыть терминал )