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    Rewterz Threat Advisory – Malicious Custom 404 Pages Used in Phishing Attacks

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    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

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    September 18, 2023
    Rewterz
    September 18, 2023
    Rewterz Threat Alert – Lumma Stealer Malware aka LummaC – Active IOCs
    Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]
    September 18, 2023
    Rewterz
    September 18, 2023
    Rewterz Threat Advisory – Multiple WordPress Plugins Vulnerabilities
    Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]
    September 18, 2023
    Rewterz
    September 18, 2023
    Rewterz Threat Update – Microsoft Teams Used for Stealing Accounts by Ransomware Access Broker
    Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

    • Contact
    • Careers
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Rewterz Threat Alert – Fake NordVPN Website Used by Hackers to Deliver Banking Trojan
August 20, 2019
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Rewterz Threat Intelligence Report 2019
August 20, 2019

Rewterz Threat Advisory – Malicious Custom 404 Pages Used in Phishing Attacks

August 20, 2019

Severity

Medium

Analysis Summary

Microsoft security researchers discovered an unusual phishing campaign which employs custom 404 error pages to trick potential victims into handing out their Microsoft credentials.

To do this, the attackers register a domain and instead of creating a single phishing landing page to redirect their victims to, they configure a custom 404 page which shows the fake login form.

This allows the phishers to have an infinite amount of phishing landing pages URLs generated with the help of a single registered domain.

The 404 Not Found page tells you that you’ve hit a broken or dead link.

Phishing landing page

The custom 404 error pages these attackers use to harvest their victims’ credentials are perfectly camouflaged as legitimate Microsoft account sign-in pages, down to the smallest details.

All the links on the phishing page, including the ones at the bottom and the ones used to access one’s Microsoft account and to create a new one, are directing straight to official Microsoft login forms in an effort to make targets less suspicious.

The only elements missing from the phishing page are the “Sign-in options” link above the “Next” button and the cookies notification at the top of the page.

Impact

Credential theft

Affected Vendors

Microsoft

Remediation

  • Always be suspicious about emails sent by unknown senders.
  • Never click on the link/attachments sent by unknown senders.

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Assess

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  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
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Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

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  • Blog
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Connect With Us

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