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Cyber Threat Lead Investigator

2 weeks ago

Sydney, New South Wales, Australia Commonwealth Bank Full time

About the Role

We are seeking a highly skilled Senior Cyber Threat Hunter to join our Cyber Detection & Response team. This is an exciting opportunity to work with some of the best security minds in the industry and contribute to actively discovering and disrupting adversarial operations that have evaded standard security controls.

Key Responsibilities

  • Lead and participate in threat hunt missions targeting potential adversarial activity in our system.
  • Advance our Detection & Response mission by developing new tactics for cyber threat analysis.
  • Conduct data analysis at scale, threat research, intelligence analysis, OSINT investigations, playbook development, and automation.
  • Collaborate with Threat Intelligence, Incident Response, Detection Engineering, and Cyber Attack Analysis teams to ensure high-impact findings are actioned in time.
  • Communicate identified control gaps and detected adversary activity to the appropriate teams. Translate findings into actionable insights.
  • Develop hunting hypotheses and use-cases, using OSINT information and insight gathered by Blue and Purple Teams.
  • Mentor team members and contribute to the development of threat hunting playbooks.
  • Identify and develop automation opportunities to streamline Threat Hunting processes.
  • Triage vulnerabilities and high-risk threat actor activities, ensuring protection against identified threats.
  • Track hunt mission performance metrics and drive continuous improvement.

Requirements

  • Minimum 3+ years in DFIR or similar roles (Senior, Principal, or experienced L3 SOC Analyst).
  • Solid Splunk knowledge and hands-on experience investigating real-world cyber attacks in various environments (on-premise and cloud).
  • Understanding of forensic artifacts relevant to different attack scenarios.
  • Exposure to offensive security principles and hacking techniques.
  • Familiarity with frameworks like MITRE ENGAGE, MITRE ATTACK FLOW, and MITRE ATT&CK.
  • Practical experience with YARA, SIGMA, and SNORT rules.
  • Understanding of the Threat Intel cycle and OSINT techniques.