Threat Researcher- Malware Analysis

Website Sophos

About the job

Sophos is a worldwide leader in next-generation cybersecurity, protecting more than 500,000 organizations and millions of consumers in more than 150 countries from today’s most advanced cyberthreats. Powered by threat intelligence, AI and machine learning from SophosLabs and SophosAI, Sophos delivers a broad portfolio of advanced products and services to secure users, networks and endpoints against ransomware, malware, exploits, phishing and the wide range of other cyberattacks. Sophos provides a single integrated cloud-based management console, Sophos Central – the centerpiece of an adaptive cybersecurity ecosystem that features a centralized data lake that leverages a rich set of open APIs available to customers, partners, developers, and other cybersecurity vendors. Sophos sells its products and services through reseller partners and managed service providers (MSPs) worldwide. Sophos has major hubs around the globe. More information is available at

Role Summary

As a junior-mid level Threat Researcher you will be part of the front line responsible for helping to protect millions of users worldwide from security threats and exploits. The successful candidate will provide analysis and detection of the latest threats and help create the next generation of SophosLabs research tools. The ideal candidate is passionate about computer security and has a high aptitude for solving challenging puzzles with an attention to detail.

What You Will Do

  • As a Sophos Labs Threat Response Engineer you will be responsible for providing protection against malware, email spam and other cyber-threats.
  • You will be analyzing new malware and spam samples, developing protection against them and handling other protection issues reported by our customers in a timely manner and with quality.
  • Analyze files reported by our customers to determine their type and risk level.
  • Create first-line detection signatures for new malicious Windows executable.
  • Monitor email spam protection levels and respond to spam outbreaks in a timely manner using appropriate anti-spam detection technology available.
  • Triage and manage cyber-threat related requests coming from our customers by collecting all the necessary information, responding to standard requests and escalating complex issues to problem domain experts for resolution.
  • Handle false positive reports from customers triggered in anti-spam, URL filtering or anti-malware filtering layers.
  • Use Sophos data publishing systems to build, test and release protection updates for customer use.
  • Write descriptions for threats for publication on the Sophos website to raise customer awareness.

What You Will Bring

  • 1-2 years of overall experience in Malware Analysis.
  • Good understanding of common Internet standards (HTTP, SMTP, DNS, Whois, HTML, RFC822, SSH).
  • Understanding of x86 architecture and familiarity with x86 Assembly.
  • Understanding of Windows OS fundamentals.
  • Basic understanding of computer and IT security.
  • Practical understanding of PE file format structures.
  • Reverse engineering with IDA or other tools.
  • Malware and/or spam analysis skills.

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What’s Great About Sophos?

  • Our people – we innovate and create, all of which are accompanied by a great sense of fun and team spirit
  • Employee-led diversity and inclusion networks that build community and provide education and advocacy
  • Annual charity and fundraising initiatives and volunteer days for employees to support local communities
  • Global employee sustainability initiatives to reduce our environmental footprint
  • Global fitness and trivia competitions to keep our bodies and minds sharp
  • Global wellbeing days for employees to relax and recharge
  • Monthly wellbeing webinars and training to support employee health and wellbeing

Our Commitment To You

We’re proud of the diverse and inclusive environment we have at Sophos, and we’re committed to ensuring equality of opportunity. We believe that diversity, combined with excellence, builds a better Sophos, so we encourage applicants that can contribute to the diversity of our team. All applicants will be treated in a fair and equal manner and in accordance with the law regardless of gender, sex, gender reassignment, marital status, race, religion or belief, color, age, military veteran status, disability, pregnancy, maternity or sexual orientation. We want to give you every opportunity to show us your best self, so if there are any adjustments we could make to the recruitment and selection process to support you, please let us know.

Data Protection

If you choose to explore an opportunity, and subsequently share your CV or other personal details with Sophos, these details will be held by Sophos for 12 months in accordance with our Privacy Policy and used by our recruitment team to contact you regarding this or other relevant opportunities at Sophos. If you would like Sophos to delete or update your details at any time, please follow the steps set out in the Privacy Policy describing your individual rights. If you have any questions about Sophos’ data protection practices, please contact

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