Threat Hunter

At WithSecure™, we protect businesses all over the world. Our SaaS solutions safeguard against modern cyber threats, and our innovative Co-security approach reflects our belief that true protection requires collaboration and shared expertise. No one can solve every cyber security problem alone. Our vision is to become Europe’s flagship in cyber security. Every day, our talented teams work to prevent cyber extortion, secure critical infrastructure, and prevent misuse of sensitive data. At WithSecure, it’s our people who make us exceptional – a diverse community that values passion, purpose, and a commitment to workplace well-being. If you’re ready to make an impact with a company that’s transforming cybersecurity, we’d love to hear from you.

Our Managed Detection and Response (MDR) business provides a world leading managed service that detects and responds to cyber-attacks on behalf of our clients using a strong combination of people, process and technology. Much of the technology is designed and built in house by the WithSecure engineering team specifically to support the managed service or as leveraged products that WithSecure also provides to the wider market.

MDR team comprises several sub teams: the Detection & Response Team (DRT) who uncover adversaries on our client’s networks and contain attacks using their Incident Response skill, the Research Team who uncover new and emerging offensive and defensive techniques, and the Technical Operations team who maintain and develop the attack detection infrastructure to ensure it remains at the bleeding edge.

Currently we are looking for a Threat Hunters (at various seniority levels) to join our growing DRT team. DRT actively monitors customer estates protected by WithSecure sensors, actively hunts for threats in vast amount of data we continuously collect and does the detection engineering. This is a position where you can grow in several technically advanced areas and use this experience to hunt for unseen threats.

We are looking for a candidate with bundles of enthusiasm, a hunger to improve their security knowledge and the desire to combat adversaries targeting our customers’ networks.

Who we think will be a great fit

If any of these points pique your interest, you will seamlessly integrate into the team and succeed:

• Terms like threat hunting , malware analysis , process injection , covert C2 , EDR and APT excite you
• You love nothing more than reading about attacker techniques and are keen to thwart and respond to the ever-evolving threats they present to our clients
• You are both using and developing cutting edge tools to aid detection and response and are keen to keep up with the latest industry developments
• You will have real-world experience responding to attacks of all levels, from script kiddies to nation states, and relish sharing this experience and knowledge with the rest of the team and the industry at large
• You keep up with the latest industry developments, are an avid reader of things like /r/netsec to get your security knowledge fix.

The Countercept platform is a dynamic and rapidly evolving product, which is heavily research led. The ideal candidate would be able to contribute to enhancing the capability of the service, whether through direct development, research activities or media opportunities.

The ideal candidate should also have some experience in both offensive and defensive security areas, either penetration testing, incident response or a mixture of both.

As a successful Threat Hunter you will have the chance to:

• Proactively investigate host, network and log-based security events
• Manage incidents from detection to resolution (Yes! You will be tasked to respond to threat as well)
• Research new attack techniques to uncover innovative detection capabilities
• Liaise with clients and report potential findings from both a technical and business perspective
• Assist in development of the Countercept service
• Develop strong knowledge of core IP networking and common protocols, as well as understanding of Windows and Linux internals
• Gain hands-on experience of automated and manual malware analysis (static and dynamic) and of network, memory and host forensics
• Investigate & respond to comprises by advanced attackers
• Grow a mixed skillset covering both offensive and defensive security, including development and scripting skills
• Learn about modern offensive techniques and APT TTP's
• Work with common network traffic analysis platforms and/or SIEM solutions

Our four promises to you…