rkhunter是Linux下的一款开源入侵检测工具。rkhunter具有比chrootkit更为全面的扫描范围。除rootkit特征码扫描外，rkhunter还支持端口扫描，常用开源软件版本和文件变动情况检查等。

下载链接：http://down.51cto.com/data/149294

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rkhunter快速安装

cd /tmp
rm -fR rkhunter*
wget -N http://downloads.sourceforge.net/project/rkhunter/rkhunter/1.3.6/rkhunter-1.3.6.tar.gz
gzip -d -c rkhunter-1.3.6.tar.gz | gtar xvf -
cd rkhunter-1.3.6
./installer.sh --install
./installer.sh --show 

rkhunter配置文件调整

sed -i 's/DISABLE_TESTS="suspscan hidden_procs deleted_files packet_cap_apps"/DISABLE_TESTS="suspscan deleted_files"/' /etc/rkhunter.conf
sed -i 's/ALLOW_SSH_ROOT_USER=no/ALLOW_SSH_ROOT_USER=without-password/' /etc/rkhunter.conf
sed -i 's/#ATTRWHITELIST=\/bin\/ps/ATTRWHITELIST=\/bin\/ps/' /etc/rkhunter.conf
sed -i 's/#WRITEWHITELIST=\/bin\/ps/WRITEWHITELIST=\/bin\/ps/' /etc/rkhunter.conf
sed -i 's/#SCRIPTWHITELIST=\/sbin\/ifup/SCRIPTWHITELIST=\/sbin\/ifup/' /etc/rkhunter.conf
sed -i 's/#SCRIPTWHITELIST=\/sbin\/ifdown/SCRIPTWHITELIST=\/sbin\/ifdown/' /etc/rkhunter.conf
sed -i 's/#SCRIPTWHITELIST=\/usr\/bin\/groups/SCRIPTWHITELIST=\/usr\/bin\/groups/' /etc/rkhunter.conf
sed -i 's/#ALLOWHIDDENDIR=\/dev\/.udev/ALLOWHIDDENDIR=\/dev\/.udev/' /etc/rkhunter.conf
sed -i 's/#ALLOWHIDDENDIR=\/dev\/.udevdb/ALLOWHIDDENDIR=\/dev\/.udevdb/' /etc/rkhunter.conf
sed -i 's/#ALLOWHIDDENFILE=\/usr\/sbin\/.sshd.hmac/ALLOWHIDDENFILE=\/usr\/sbin\/.sshd.hmac/' /etc/rkhunter.conf
sed -i 's/#ALLOWHIDDENFILE=\/usr\/bin\/.ssh.hmac/ALLOWHIDDENFILE=\/usr\/bin\/.ssh.hmac/' /etc/rkhunter.conf
sed -i 's/#ALLOWHIDDENFILE=\/usr\/bin\/.fipscheck.hmac/ALLOWHIDDENFILE=\/usr\/bin\/.fipscheck.hmac/' /etc/rkhunter.conf
echo 'ALLOWHIDDENDIR=/dev/ida' >> /etc/rkhunter.conf
sed -i 's/#SCRIPTWHITELIST=\/sbin\/ifdown/SCRIPTWHITELIST=\/sbin\/ifdown/' /etc/rkhunter.conf
sed -i 's/#SCRIPTWHITELIST=\/usr\/bin\/groups/SCRIPTWHITELIST=\/usr\/bin\/groups/' /etc/rkhunter.conf
echo 'SCRIPTWHITELIST=/usr/bin/ldd' >> /etc/rkhunter.conf
echo 'SCRIPTWHITELIST=/usr/bin/whatis' >> /etc/rkhunter.conf
echo 'SCRIPTWHITELIST=/usr/bin/GET' >> /etc/rkhunter.conf
## 更新rkhunter数据库 ##
rkhunter --update
rkhunter --propupd
/usr/local/bin/rkhunter --cronjob -l --nomow --rwo 

rkhunter的crontab定期扫描

运行crontab -e添加以下信息。

 3 * * * (/usr/local/bin/rkhunter --cronjob -l --nomow --rwo | mail -s "【标题】rkhunter report" 【邮箱】)