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“EvilProxy” Phishing Tool Puts Microsoft Outlook Users at Risk: How to Protect Your Network

Microsoft Outlook is a widely used email client across the globe. Unfortunately, a new security vulnerability in the desktop client could potentially allow attackers to gain unauthorised access to your network. This vulnerability, known as “EvilProxy,” is a phishing attack that can easily trick users into downloading and executing malicious software.

What is EvilProxy?

EvilProxy is a phishing tool that takes advantage of a critical security flaw in Microsoft Outlook. When a user opens an email that contains a specially crafted attachment, the EvilProxy tool can bypass Outlook’s security features and launch a malware attack on the user’s computer.

The tool exploits a vulnerability in how Outlook handles embedded images in HTML emails. By embedding an image with a specific URL, attackers can access a user’s network without needing any user interaction.

How to Defend Yourself from EvilProxy?

There are several steps you can take to defend yourself against EvilProxy and other phishing attacks:

  1. Update Your Software: Ensure you have the latest version of Microsoft Outlook installed on your computer. Microsoft regularly releases security updates to address known vulnerabilities.
  2. Be Wary of Email Attachments: Do not open email attachments from unknown senders. Even if the sender is known, verify the legitimacy of the attachment before opening it.
  3. Educate Your Staff: Educate your staff on the dangers of phishing attacks and how to spot them. Ensure your employees know what to look for and how to report any suspicious activity.
  4. Conditional access is an effective way to prevent unauthorised access to your network from external locations. By setting policies allowing access only from trusted devices or locations, you can ensure your network remains secure. You can also use conditional access to limit access to specific resources or applications, reducing the risk of data breaches.

How Microsoft Business Premium and Cyber Essentials Plus Can Help?

Microsoft Business Premium and Cyber Essentials Plus are security solutions that can help protect your organization from cyber threats like EvilProxy.

Microsoft Business Premium provides advanced email security features such as Exchange Online Protection, which can help protect against phishing attacks. It includes multi-factor authentication, data loss prevention, and mobile device management.

Cyber Essentials Plus is a UK government-backed cybersecurity certification that can help businesses protect themselves against common cyber threats. It includes a range of security controls, including firewalls, antivirus software, and secure configuration.

EvilProxy poses a severe threat to Microsoft Outlook users. Therefore, it is crucial to take appropriate measures to safeguard your network and educate your staff on how to avoid falling victim to phishing attacks. In this regard, Eitex can be of great assistance by upgrading your business to Microsoft Business Premium and providing expert guidance on Cyber Essentials Plus. By leveraging advanced security features, you can strengthen your organisation’s resilience against cyber threats. So why wait? Contact us today to explore your options and take the first step towards a safer future. Remember to stay vigilant and stay safe!

Adele Spencer

Marketing and Business Development Manager for Eitex

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