mde baseline ansible

Microsoft Defender for Endpoint (MDE) Ansible 基线

使用 ansible 确保 MDE 在 Linux、MacOS 或 Windows 系统上安装、配置并处于活动状态

在您的清单中定义 mde 组

 % ansible-playbook mde-verify.yml

替代方案

• 使用 MDE 基线 Inspec 配置文件

已知的 MDE 设置问题

• Selinux 在 RHEL/Centos7 问题上强制执行。在 RHEL/Centos8 上工作

 Error : wdavdaemon[20263]: /opt/microsoft/mdatp/sbin/wdavdaemon: error while loading shared libraries: libwdavdaemon_core.so: cannot enable executable stack as shared object requires: Permission denied

为了解决这个问题

 $ sepolicy generate -n wdavdaemon --init /opt/microsoft/mdatp/sbin/wdavdaemon
Loaded plugins: product-id, subscription-manager
Created the following files:
wdavdaemon.te # Type Enforcement file
wdavdaemon.if # Interface file
wdavdaemon.fc # File Contexts file
wdavdaemon_selinux.spec # Spec file
wdavdaemon.sh # Setup Script
$ sudo audit2allow -i /var/log/audit/audit.log -M wdavdaemon
[pp file should have: allow unconfined_service_t self:process execstack;]
$ sudo semodule -i wdavdaemon.pp
$ sudo systemctl restart mdatp
$ systemctl status mdatp

• /var/opt/microsoft/mdatp 需要有 exec mount 标志，替代选项是移动到兼容位置

 $ sudo systemctl stop mdatp
$ sudo install -d -m 755 /usr/local/microsoft
$ sudo bash -c 'mv /var/opt/microsoft/mdatp /usr/local/microsoft/ && ln -s /usr/local/microsoft/mdatp /var/opt/microsoft/'
$ sudo systemctl restart mdatp

这可能会解决健康问题：引擎 v1 不可用

• 分析器工具需要 Linux 上的 python3.7 和 perf。支持可以提供替代工具而不需要 python3

• 默认分析器 zip 不支持 RHEL/Centos 6. 达到对适当软件包的支持

参考

• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/linux-install-with-ansible，https://github.com/MicrosoftDocs/microsoft-365-docs/blob/公共/microsoft-365/security/defender-endpoint/linux-install-with-ansible.md
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/linux-install-with-puppet
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/linux-deploy-defender-for-endpoint-with-chef
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/microsoft-defender-endpoint-linux
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/health-status 如果定义未自动更新，请尝试手动更新

 mdatp definitions update

• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/linux-support-connectivity
• https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/linux-support-perf 部分性能影响可能与auditd有关，通常的路径是从auditd覆盖范围中排除匹配的二进制文件，要么使用支持工具，要么直接在auditd规则中。