RKHunter : インストール2022/08/30

	Rootkit 検出ツール RKHunter のインストールと設定です。
[1]	RKHunter をインストールします。

root@dlp:~#

apt -y install rkhunter curl

[2]	RKHunter の設定と利用方法です。

root@dlp:~#

vi /etc/default/rkhunter

# [yes] を設定すると日時チェック実行

CRON_DAILY_RUN=""

# レポートを送信する宛先メールアドレス

REPORT_EMAIL="root"

root@dlp:~#

vi /etc/rkhunter.conf

# 107行目 : 変更

UPDATE_MIRRORS=

# 122行目 : 変更

MIRRORS_MODE=

# 1190行目 : ブランクに変更

WEB_CMD=""

# データベースをアップデート

root@dlp:~#

rkhunter --update

[ Rootkit Hunter version 1.4.6 ]

Checking rkhunter data files...
  Checking file mirrors.dat                                  [ Updated ]
  Checking file programs_bad.dat                             [ No update ]
  Checking file backdoorports.dat                            [ No update ]
  Checking file suspscan.dat                                 [ No update ]
  Checking file i18n/cn                                      [ Skipped ]
  Checking file i18n/de                                      [ Skipped ]
  Checking file i18n/en                                      [ No update ]
  Checking file i18n/tr                                      [ Skipped ]
  Checking file i18n/tr.utf8                                 [ Skipped ]
  Checking file i18n/zh                                      [ Skipped ]
  Checking file i18n/zh.utf8                                 [ Skipped ]
  Checking file i18n/ja                                      [ Skipped ]

# システムのファイル情報をアップデート

root@dlp:~#

rkhunter --propupd

[ Rootkit Hunter version 1.4.6 ]
File updated: searched for 180 files, found 142

# チェック実行
# --sk で Enterキー押下をスキップ
# --rwo を指定すると、警告のみ表示

root@dlp:~#

rkhunter --check --sk

[ 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                               [ OK ]
    /usr/sbin/adduser                                        [ OK ]
    /usr/sbin/chroot                                         [ OK ]
    /usr/sbin/cron                                           [ 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/init                                           [ OK ]
    /usr/sbin/insmod                                         [ OK ]
    /usr/sbin/ip                                             [ OK ]
    /usr/sbin/lsmod                                          [ OK ]
    /usr/sbin/modinfo                                        [ OK ]
    /usr/sbin/modprobe                                       [ OK ]
    /usr/sbin/nologin                                        [ OK ]
    /usr/sbin/pwck                                           [ OK ]
    /usr/sbin/rmmod                                          [ OK ]

.....
.....

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

File properties checks...
    Files checked: 142
    Suspect files: 0

Rootkit checks...
    Rootkits checked : 498
    Possible rootkits: 0

Applications checks...
    All checks skipped

The system checks took: 40 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)