RKHunter安装使用教程

RKHunter安装使用教程

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RKHunter是一款专业的检测系统是否感染rootkit工具。RKHunter可以通过执行一系列的脚本来确认服务器是否已经感染rootkit。本文主要为大家介绍RKHunter安装及使用教程。供大家参考。

1。安装RKHunter(下载地址:https://sourceforge.net/projects/rkhunter/files/latest/download)

[root@server ~]# tar -zxf rkhunter-1.4.6.tar.gz     #版本可能不同。命令都一样

[root@server ~]# cd rkhunter-1.4.6

[root@server rkhunter-1.4.6]# ./installer.sh –layout default –install

RKHunter安装使用教程

RKHunter安装使用教程

RKHunter安装使用教程

注意:RKHunter的默认安装方式。目录:/usr/local/bin

2。RKHunter常用参数列表

参数 含义
-c, –check 必选参数。表示检测当前系统
–configfile <file> 使用特定配置文件
–cronjob 作为cron任务定期运行
–sk, –skip-keypress 自动完成所有检测。跳过键盘输入
–summary 显示检测结果的统计信息
–update 检测更新内容
-V, –version 显示版本信息
–versioncheck 检测最新版本
–propupd [file | directory ] 建立样本文件。建议安装完系统就建立

检测示例:

[root@master rkhunter-1.4.6]# rkhunter -c
[ Rootkit Hunter version 1.4.6 ]

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                               [ Warning ]
    /usr/local/bin/rkhunter                                  [ OK ]
    /usr/sbin/adduser                                        [ OK ]
    /usr/sbin/chkconfig                                      [ OK ]
    /usr/sbin/chroot                                         [ OK ]
    /usr/sbin/depmod                                         [ OK ]
    /usr/sbin/fsck                                           [ OK ]
    /usr/sbin/groupadd                                       [ OK ]
    /usr/sbin/groupdel                                       [ OK ]
    /usr/sbin/groupmod                                       [ OK ]
    /usr/sbin/grpck                                          [ OK ]
    /usr/sbin/ifconfig                                       [ OK ]
    /usr/sbin/ifdown                                         [ Warning ]
    /usr/sbin/ifup                                           [ Warning ]
    /usr/sbin/init                                           [ OK ]
    /usr/sbin/insmod                                         [ OK ]
    /usr/sbin/ip                                             [ OK ]
    /usr/sbin/lsmod                                          [ OK ]
    /usr/sbin/lsof                                           [ OK ]
    /usr/sbin/modinfo                                        [ OK ]
    /usr/sbin/modprobe                                       [ OK ]
    /usr/sbin/nologin                                        [ OK ]
    /usr/sbin/pwck                                           [ OK ]
    /usr/sbin/rmmod                                          [ OK ]
    /usr/sbin/route                                          [ OK ]
    /usr/sbin/rsyslogd                                       [ OK ]
    /usr/sbin/runlevel                                       [ OK ]
    /usr/sbin/sestatus                                       [ OK ]
    /usr/sbin/sshd                                           [ OK ]
    /usr/sbin/sulogin                                        [ OK ]
    /usr/sbin/sysctl                                         [ OK ]
    /usr/sbin/useradd                                        [ OK ]
    /usr/sbin/userdel                                        [ OK ]
    /usr/sbin/usermod                                        [ OK ]
    /usr/sbin/vipw                                           [ OK ]
    /usr/bin/awk                                             [ OK ]
    /usr/bin/basename                                        [ OK ]
    /usr/bin/bash                                            [ OK ]
    /usr/bin/cat                                             [ OK ]
    /usr/bin/chattr                                          [ OK ]
    /usr/bin/chmod                                           [ OK ]
    /usr/bin/chown                                           [ OK ]
    /usr/bin/cp                                              [ OK ]
    /usr/bin/curl                                            [ OK ]
    /usr/bin/cut                                             [ OK ]
    /usr/bin/date                                            [ OK ]
    /usr/bin/df                                              [ OK ]
    /usr/bin/diff                                            [ OK ]
    /usr/bin/dirname                                         [ OK ]
    /usr/bin/dmesg                                           [ OK ]
    /usr/bin/du                                              [ OK ]
    /usr/bin/echo                                            [ OK ]
    /usr/bin/egrep                                           [ Warning ]
    /usr/bin/env                                             [ OK ]
    /usr/bin/fgrep                                           [ Warning ]
    /usr/bin/file                                            [ OK ]
    /usr/bin/find                                            [ OK ]
    /usr/bin/grep                                            [ OK ]
    /usr/bin/groups                                          [ OK ]
    /usr/bin/head                                            [ OK ]
    /usr/bin/id                                              [ OK ]
    /usr/bin/ipcs                                            [ OK ]
    /usr/bin/kill                                            [ OK ]
    /usr/bin/last                                            [ OK ]
    /usr/bin/lastlog                                         [ OK ]
    /usr/bin/ldd                                             [ Warning ]
    /usr/bin/less                                            [ OK ]
    /usr/bin/logger                                          [ OK ]
    /usr/bin/login                                           [ OK ]
    /usr/bin/ls                                              [ OK ]
    /usr/bin/lsattr                                          [ OK ]
    /usr/bin/md5sum                                          [ OK ]
    /usr/bin/mktemp                                          [ OK ]
    /usr/bin/more                                            [ OK ]
    /usr/bin/mount                                           [ OK ]
    /usr/bin/mv                                              [ OK ]
    /usr/bin/netstat                                         [ OK ]
    /usr/bin/newgrp                                          [ OK ]
    /usr/bin/passwd                                          [ OK ]
    /usr/bin/perl                                            [ OK ]
    /usr/bin/pgrep                                           [ OK ]
    /usr/bin/ping                                            [ OK ]
    /usr/bin/pkill                                           [ OK ]
    /usr/bin/ps                                              [ OK ]
    /usr/bin/pwd                                             [ OK ]
    /usr/bin/readlink                                        [ OK ]
    /usr/bin/rpm                                             [ OK ]
    /usr/bin/runcon                                          [ OK ]
    /usr/bin/sed                                             [ OK ]
    /usr/bin/sh                                              [ 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/ssh                                             [ OK ]
    /usr/bin/stat                                            [ OK ]
    /usr/bin/strace                                          [ OK ]
    /usr/bin/strings                                         [ OK ]
    /usr/bin/su                                              [ OK ]
    /usr/bin/sudo                                            [ OK ]
    /usr/bin/tail                                            [ OK ]
    /usr/bin/telnet                                          [ OK ]
    /usr/bin/test                                            [ OK ]
    /usr/bin/top                                             [ OK ]
    /usr/bin/touch                                           [ OK ]
    /usr/bin/tr                                              [ OK ]
    /usr/bin/uname                                           [ 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/numfmt                                          [ OK ]
    /usr/bin/kmod                                            [ OK ]
    /usr/bin/systemctl                                       [ OK ]
    /usr/bin/gawk                                            [ OK ]
    /usr/lib/systemd/systemd                                 [ OK ]
    /etc/rkhunter.conf                                       [ 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 ]
    Diamorphine LKM                                          [ Not found ]
    Dica-Kit Rootkit                                         [ Not found ]
    Dreams Rootkit                                           [ Not found ]
    Duarawkz Rootkit                                         [ Not found ]
    Ebury backdoor                                           [ Not found ]
    Enye LKM                                                 [ Not found ]
    Flea Linux Rootkit                                       [ Not found ]
    Fu Rootkit                                               [ Not found ]
    Fuck`it Rootkit                                          [ Not found ]
    GasKit Rootkit                                           [ Not found ]
    Heroin LKM                                               [ Not found ]
    HjC Kit                                                  [ Not found ]
    ignoKit Rootkit                                          [ Not found ]
    IntoXonia-NG Rootkit                                     [ Not found ]
    Irix Rootkit                                             [ Not found ]
    Jynx Rootkit                                             [ Not found ]
    Jynx2 Rootkit                                            [ Not found ]
    KBeast 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 ]
    Mokes backdoor                                           [ 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 ]
    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 ]
    zaRwT.KiT Rootkit                                        [ Not found ]
    ZK Rootkit                                               [ Not found ]

[Press <ENTER> to continue]


  Performing additional rootkit checks
    Suckit Rootkit 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 sniffer log files                           [ None found ]
    Checking for suspicious directories                      [ None found ]
    Checking for suspicious (large) shared memory segments   [ None found ]
    Checking for Apache backdoor                             [ Not found ]

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

[Press <ENTER> to continue]


Checking the network...

  Performing checks on the network ports
    Checking for backdoor ports                              [ None found ]

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

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                [ OK ]

  Performing system configuration file checks
    Checking for an SSH configuration file                   [ Found ]
    Checking if SSH root access is allowed                   [ Warning ]
    Checking if SSH protocol v1 is allowed                   [ Warning ]
    Checking for other suspicious configuration settings     [ None found ]
    Checking for a running system logging daemon             [ Found ]
    Checking for a system logging 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...
    Required commands check failed
    Files checked: 127
    Suspect files: 5

Rootkit checks...
    Rootkits checked : 496
    Possible rootkits: 0

Applications checks...
    All checks skipped

The system checks took: 5 minutes and 43 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)

解读:每项检测结果都高亮显示。绿色表示正常。红色表示需要引起关注。上面的检测需要与用户交互输入“回车”。可以使用–sk选项使其自动检测:

[root@master rkhunter-1.4.6]# rkhunter –check –skip-keypress

3。定时检测

Linux终端使用rkhunter来检测。最大的好处在于每项的检测结果都有不同的颜色显示。如果是绿色的表示没有问题。如果是红色的。那就要引起关注了。另外。在上面执行检测的过程中。在每个部分检测完成后。需要以Enter键来继续。如果要让程序自动运行。可以执行如下命令:

30 09 * * * root /usr/local/bin/rkhunter –check –cronjob

解读:rkhunter检测程序就会在每天的9:30分运行一次。

4。安全更新

测试是否存在漏洞。执行以下命令:

$ env x='() { :;}; echo vulnerable’ bash -c “echo this is a test”

vulnerable

this is a test

如果显示如上。那么。很遗憾。必须立即打上安全补丁修复。

临时解决办法为:

yum -y update bash

升级bash后。执行测试:

$ env x='() { :;}; echo vulnerable’ bash -c “echo this is a test”

bash: warning: x: ignoring function definition attempt

bash: error importing function definition for `x’

this is a test

如果显示如上。表示已经修补了漏洞。

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