+Kernel Modules and Extensions Mitigation

Kernel Modules and Extensions Mitigation

Common tools for detecting Linux rootkits include: rkhunter[1], chrootkit[2], although rootkits may be designed to evade certain detection tools.

LKMs and Kernel extensions require root level permissions to be installed. Limit access to the root account and prevent users from loading kernel modules and extensions through proper privilege separation and limiting Privilege Escalation opportunities.

Application whitelisting and software restriction tools, such as SELinux, can also aide in restricting kernel module loading.[3]

References

  1. Rootkit Hunter Project. (2018, February 20). The Rootkit Hunter project. Retrieved April 9, 2018.
  2. Murilo, N., Steding-Jessen, K. (2017, August 23). Chkrootkit. Retrieved April 9, 2018.
  3. Vander Stoep, J. (2016, April 5). [v3] selinux: restrict kernel module loadinglogin register. Retrieved April 9, 2018.

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