AIDE : Host Based IDS2024/06/19 |
|
Install and configure Host Based IDS (Intrusion Detection System) [AIDE] (Advanced Intrusion Detection Environment). |
|
| [1] | Install AIDE. |
|
root@dlp:~# apt -y install aide
|
| [2] | Configure AIDE and initialize database. It's possible to use AIDE with default settings but if you'd like to customize settings, change configuration file like follows. It's possible to see details of Setting rules with [man aide.conf]. |
|
root@dlp:~#
vi /etc/default/aide # line 8 : if you do not use Cron job, comment out and turn to [no] #CRON_DAILY_RUN=yes
root@dlp:~#
vi /etc/aide/aide.conf # add to last line : set exclude directories if you need
!/var/log
!/var/lib/aide !/var/lib/apt !/var/lib/dpkg !/var/cache !/run # initialize database root@dlp:~# aide --init --config /etc/aide/aide.conf
Start timestamp: 2024-06-19 00:26:20 +0000 (AIDE 0.18.6)
AIDE successfully initialized database.
New AIDE database written to /var/lib/aide/aide.db.new
Ignored e2fs attributes: EINV
Number of entries: 129989
---------------------------------------------------
The attributes of the (uncompressed) database(s):
---------------------------------------------------
/var/lib/aide/aide.db.new
MD5 : 7c6rXJ8Ya1zBrT69oz2Ckw==
SHA1 : c8ASv/14g8ts3oLJx+ERcO0A4L4=
SHA256 : 91xdDJbYp03WdErPL8WGWVfQn4eE/DEj
O9mXYcYKAlA=
SHA512 : Ubp7cw3dJ09lUqyyVm7lh46mfhs4JlIm
22J9BtqHmtTaW2egkHfuj2MVYtNyrKkY
3oredDWzsjA7HLru3GsiQg==
RMD160 : suAcpe1q0dWG0rvVEefGPj78QFw=
TIGER : i/ltOms38A8r2AlkNmed1YbO2iF71pSe
CRC32 : lIIuqQ==
CRC32B : i70DbA==
HAVAL : IBt7FX46tH/KBiJibPEYukWb3BANb+o8
4fAPe2GK6DM=
WHIRLPOOL : R2Do90WTJFNCpvVVDe73KkAX6HbzFHHC
MnbEgswqefb4wd9t41xHRxoNojmU38Th
h7p9O6VnwcIKWt4FLrsbBA==
GOST : Lq2zhQkjy5LG4tEjOf/Dh2Br06l4OOFb
trboBfl3XYs=
End timestamp: 2024-06-19 00:31:14 +0000 (run time: 4m 54s)
# copy generated DB to master DB root@dlp:~# cp -p /var/lib/aide/aide.db.new /var/lib/aide/aide.db
|
| [3] | Run checking. |
|
root@dlp:~#
aide --check --config /etc/aide/aide.conf # if thete is no unmatch, it displayed [*** Looks okay]
Start timestamp: 2024-06-19 00:32:25 +0000 (AIDE 0.18.6)
AIDE found NO differences between database and filesystem. Looks okay!!
Ignored e2fs attributes: EINV
Number of entries: 129989
---------------------------------------------------
The attributes of the (uncompressed) database(s):
---------------------------------------------------
/var/lib/aide/aide.db
MD5 : 7c6rXJ8Ya1zBrT69oz2Ckw==
SHA1 : c8ASv/14g8ts3oLJx+ERcO0A4L4=
SHA256 : 91xdDJbYp03WdErPL8WGWVfQn4eE/DEj
O9mXYcYKAlA=
SHA512 : Ubp7cw3dJ09lUqyyVm7lh46mfhs4JlIm
22J9BtqHmtTaW2egkHfuj2MVYtNyrKkY
3oredDWzsjA7HLru3GsiQg==
RMD160 : suAcpe1q0dWG0rvVEefGPj78QFw=
TIGER : i/ltOms38A8r2AlkNmed1YbO2iF71pSe
CRC32 : lIIuqQ==
CRC32B : i70DbA==
HAVAL : IBt7FX46tH/KBiJibPEYukWb3BANb+o8
4fAPe2GK6DM=
WHIRLPOOL : R2Do90WTJFNCpvVVDe73KkAX6HbzFHHC
MnbEgswqefb4wd9t41xHRxoNojmU38Th
h7p9O6VnwcIKWt4FLrsbBA==
GOST : Lq2zhQkjy5LG4tEjOf/Dh2Br06l4OOFb
trboBfl3XYs=
End timestamp: 2024-06-19 00:39:54 +0000 (run time: 7m 29s)
# try to change a file and check again root@dlp:~# touch /root/test.txt root@dlp:~# aide --check --config /etc/aide/aide.conf # detected differences like follows
Start timestamp: 2024-06-19 00:40:40 +0000 (AIDE 0.18.6)
AIDE found differences between database and filesystem!!
Ignored e2fs attributes: EINV
Summary:
Total number of entries: 129990
Added entries: 1
Removed entries: 0
Changed entries: 1
---------------------------------------------------
Added entries:
---------------------------------------------------
f+++++++++++++++++: /root/test.txt
---------------------------------------------------
Changed entries:
---------------------------------------------------
d =.... mc.. .. . : /root
---------------------------------------------------
Detailed information about changes:
---------------------------------------------------
Directory: /root
Mtime : 2024-06-19 00:26:12 +0000 | 2024-06-19 00:40:35 +0000
Ctime : 2024-06-19 00:26:12 +0000 | 2024-06-19 00:40:35 +0000
---------------------------------------------------
The attributes of the (uncompressed) database(s):
---------------------------------------------------
/var/lib/aide/aide.db
MD5 : 7c6rXJ8Ya1zBrT69oz2Ckw==
SHA1 : c8ASv/14g8ts3oLJx+ERcO0A4L4=
SHA256 : 91xdDJbYp03WdErPL8WGWVfQn4eE/DEj
O9mXYcYKAlA=
SHA512 : Ubp7cw3dJ09lUqyyVm7lh46mfhs4JlIm
22J9BtqHmtTaW2egkHfuj2MVYtNyrKkY
3oredDWzsjA7HLru3GsiQg==
RMD160 : suAcpe1q0dWG0rvVEefGPj78QFw=
TIGER : i/ltOms38A8r2AlkNmed1YbO2iF71pSe
CRC32 : lIIuqQ==
CRC32B : i70DbA==
HAVAL : IBt7FX46tH/KBiJibPEYukWb3BANb+o8
4fAPe2GK6DM=
WHIRLPOOL : R2Do90WTJFNCpvVVDe73KkAX6HbzFHHC
MnbEgswqefb4wd9t41xHRxoNojmU38Th
h7p9O6VnwcIKWt4FLrsbBA==
GOST : Lq2zhQkjy5LG4tEjOf/Dh2Br06l4OOFb
trboBfl3XYs=
End timestamp: 2024-06-19 00:48:14 +0000 (run time: 7m 34s)
|
| [4] | If there is no problem even if some differences are detected, then update database like follows. |
|
root@dlp:~#
aide --update --config /etc/aide/aide.conf Start timestamp: 2024-06-19 00:54:24 +0000 (AIDE 0.18.6) AIDE found differences between database and filesystem!! New AIDE database written to /var/lib/aide/aide.db.new Ignored e2fs attributes: EINV Summary: Total number of entries: 129990 Added entries: 1 Removed entries: 0 Changed entries: 1 --------------------------------------------------- Added entries: --------------------------------------------------- f+++++++++++++++++: /root/test.txt --------------------------------------------------- Changed entries: --------------------------------------------------- d =.... mc.. .. . : /root --------------------------------------------------- Detailed information about changes: --------------------------------------------------- Directory: /root Mtime : 2024-06-19 00:26:12 +0000 | 2024-06-19 00:40:35 +0000 Ctime : 2024-06-19 00:26:12 +0000 | 2024-06-19 00:40:35 +0000 ..... ..... # update database root@dlp:~# cp -p /var/lib/aide/aide.db.new /var/lib/aide/aide.db
|
| Sponsored Link |