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Zorluk: KolayEndpoint Detection and Response (EDR)

An Endpoint Detection and Response (EDR) agent detects an active ransomware process attempting to encrypt files on a enterprise workstation. Place the following incident response workflow steps in the correct chronological order from first action to last action.

  1. 1The EDR agent automatically isolates the infected workstation network interface from the local network.
  2. 2The automated EDR playbook terminates the malicious parent process and associated child process threads.
  3. 3The SOC analyst initiates remote memory dump collection and process tree analysis of the isolated host.
  4. 4The analyst issues an automated remediation command to remove persistent registry keys and restore quarantined files.

Cevap

The correct order of steps in the EDR incident response workflow is: 1) Isolate the host from the network, 2) Terminate the malicious process tree, 3) Perform memory analysis and process tree inspection, 4) Execute remediation and remove persistence artifacts.
In standard EDR operational playbooks, the immediate priority upon detecting active malware is containment (host isolation), followed by terminating the active process execution, conducting forensic memory analysis, and finally executing remediation commands to remove persistence.

Adım Adım Çözüm

1
Network Host Isolation
The host is isolated from the enterprise network to block lateral movement.
Immediate containment minimizes the threat radius before taking further investigative actions.
2
Malicious Process Termination
The execution of ransomware process threads is stopped.
Terminating the process halts active file encryption on the endpoint.
3
Telemetry & Memory Forensics
Process lineage and memory artifacts are collected for analysis.
Forensic inspection identifies how the attack occurred and what persistence mechanisms were dropped.
4
Remediation & Cleanup
Registry keys are cleaned up and infected files are restored from shadow copies.
Host state is returned to a clean baseline after full analysis and containment.

Anahtar Kavram

EDR Automated Containment and Incident Response Workflow
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