Bootkit
Bootkit: Malware that manipulates the boot process and activates before the operating system. Defense requires robust preventionPreventionMeasures intended to stop security incidents or attacks before they occur., meaningful loggingLoggingThe recording of security-relevant events so activity can be monitored, investigated, and audited., timely detectionDetectionThe capability to identify suspicious activity, attacks, or policy violations in time., and clearly defined response measures.
How it works and where it fits
Bootkit is classified by its behavior and purpose: execution, persistence, propagation, command, and harmful effect are distinct phases. Not every variant uses every phase, and the same malicious component may arrive through different delivery mechanisms or carry different payloads. Analysis therefore considers process, identity, and network behavior in addition to file signatures.
Practical security relevance
Operational handling should address the entire attack chain. Isolating affected systems is only one step; responders must also investigate the entry point, persistence mechanisms, stolen credentials, and possible lateral movement. Recovery is dependable only after malicious components are removed, root causes are closed, relevant secrets are rotated, and monitoring is tuned for renewed activity.
Related concepts
- RootkitRootkitToolset for covertly maintaining privileged access.: Toolset for covertly maintaining privileged access.
- Secure BootSecure BootLaunches only cryptographically trusted boot components and firmware.: Launches only cryptographically trusted boot components and firmware.
- Firmware SecurityFirmware SecurityProtects low-level software, boot processes, and hardware functions from tampering.: Protects low-level software, boot processes, and hardware functions from tampering.
- Anti-MalwareAnti-MalwareTechnologies for detecting, blocking, and removing malicious software.: Technologies for detecting, blocking, and removing malicious software.