Tripwire 完整性分析工具（Linux系统）

环境：centos7
工作流程：

• 当前的系统数据状态建立数据库
• 定期比较系统现状与数据库中的状态
• 属性改变有详细报告
• 分析报告发现入侵

1、安装相关软件包

[root@hello ~]# yum install epel-release -y
已加载插件：fastestmirror
Repository base is listed more than once in the configuration
base                                                                | 3.6 kB  00:00:00
epel                                                                | 4.7 kB  00:00:00
extras                                                              | 2.9 kB  00:00:00

[root@hello ~]# yum install tripwire -y
已加载插件：fastestmirror
Repository base is listed more than once in the configuration
Loading mirror speeds from cached hostfile
正在解决依赖关系
--> 正在检查事务
---> 软件包 tripwire.x86_64.0.2.4.3.7-1.el7 将被 安装
--> 解决依赖关系完成

生成密钥（123456）
[root@hello ~]# tripwire-setup-keyfiles

----------------------------------------------
The Tripwire site and local passphrases are used to sign a  variety  of
files, such as the configuration, policy, and database files.

Passphrases should be at least 8 characters in length and contain  both
letters and numbers.

See the Tripwire manual for more information.

----------------------------------------------
Creating key files...

2、初始化数据库

[root@hello ~]# tripwire --init
Please enter your local passphrase:
Parsing policy file: /etc/tripwire/tw.pol
Generating the database...
*** Processing Unix File System ***
### Warning: File system error.
### Filename: /usr/sbin/fixrmtab
### 没有那个文件或目录

• 就地解决报错

[root@hello ~]# sh -c "tripwire --check | grep Filename > cat no-directory.txt
"
#将报错中不存在的目录和文件加到no-directory.txt中

### Warning: File system error.
### Filename: /usr/sbin/fixrmtab
### 没有那个文件或目录
[root@hello ~]# vim tripwire.sh
 #写个脚本
for f in $(grep "Filename:" no-directory.txt | cut -f2 -d:); do
sed -i "s|\($f\) |#\\1|g" /etc/tripwire/twpol.txt
done

[root@hello ~]# twadmin -m P /etc/tripwire/twpol.txt
 #重新签署配置
Please enter your site passphrase:
Wrote policy file: /etc/tripwire/tw.pol

[root@hello ~]# tripwire --init
 #重新初始化
Please enter your local passphrase:
Parsing policy file: /etc/tripwire/tw.pol
Generating the database...
*** Processing Unix File System ***

3、测试：更改/etc/passwd文件（添加了以下k）

4、发现异常

[root@hello ~