CyberHappenings logo

Track cybersecurity events as they unfold. Sourced timelines, daily updates. Fast, privacy‑respecting. No ads, no tracking.

Microsoft ADFS Redirects Exploited in Phishing Campaigns

First reported
Last updated
📰 1 unique sources, 1 articles

Summary

Hide ▲

Attackers are leveraging legitimate ADFS redirects to bypass traditional security measures and steal Microsoft 365 logins. The campaign uses trusted office.com links to redirect users to phishing pages, evading detection and multi-factor authentication. The technique involves setting up a custom Microsoft tenant with ADFS configured, allowing attackers to receive authorization requests from a malicious domain. The attack starts with a malicious sponsored link in Google search results, redirecting users through Microsoft’s infrastructure to a phishing page. The phishing page is designed to collect credentials and includes conditional loading restrictions to ensure only valid targets access it. The campaign does not appear to target specific industries or job roles, suggesting experimentation with new attack methods.

Timeline

  1. 20.08.2025 18:33 📰 1 articles · ⏱ 27d ago

    Phishing Campaign Uses ADFS Redirects to Steal Microsoft Logins

    Attackers have begun using legitimate ADFS redirects to bypass traditional security measures and steal Microsoft 365 logins. The campaign involves setting up a custom Microsoft tenant with ADFS configured, allowing attackers to receive authorization requests from a malicious domain. The attack starts with a malicious sponsored link in Google search results, redirecting users through Microsoft’s infrastructure to a phishing page. The phishing page includes conditional loading restrictions to filter valid targets. The campaign does not appear to target specific industries or job roles, indicating experimentation with new techniques.

    Show sources

Information Snippets

Similar Happenings

SlopAds Fraud Ring Exploits 224 Android Apps to Drive 2.3 Billion Daily Ad Bids

A fraudulent ad operation, SlopAds, has been identified, exploiting 224 Android apps to generate 2.3 billion ad bids daily. The apps, collectively downloaded 38 million times across 228 countries, use steganography and hidden WebViews to create fraudulent ad impressions and clicks. The operation was disrupted after Google removed the offending apps from the Play Store. The SlopAds campaign is notable for its sophisticated tactics, including conditional fraud execution and the use of AI-themed services for command and control. The fraudulent behavior is triggered only when apps are downloaded via ad clicks, making detection more challenging. The campaign's infrastructure includes multiple domains and a complex feedback loop designed to evade security researchers. The campaign's highest concentration of ad impressions originated from the United States (30%), followed by India (10%) and Brazil (7%).

FileFix Attack Using Steganography to Deploy StealC Infostealer

A new FileFix social engineering campaign impersonates Meta account suspension warnings to trick users into installing the StealC infostealer malware. The attack uses steganography to hide malicious scripts and executables within a JPG image. The campaign targets various credentials, cryptocurrency wallets, and cloud services. The FileFix technique abuses the File Explorer address bar to execute PowerShell commands, bypassing traditional detection methods. The attack was discovered by Acronis and observed over a two-week period, with multiple variants using different payloads and domains. The StealC malware aims to steal sensitive information from infected devices, including browser credentials, messaging app data, and cryptocurrency wallets. The FileFix technique was created by red team researcher mr.d0x and has been previously used by the Interlock ransomware gang. The attack uses a multilingual phishing site to trick users into copying and pasting a malicious command into the File Explorer address bar. The campaign abuses Bitbucket repositories to host malicious components, leveraging trust in the platform to bypass detection. The FileFix campaign is the most widespread, customized, and sophisticated to date, targeting users in over 16 countries. The phishing site has been translated into at least 16 different languages. The attack chain involves a phishing email impersonating Facebook security, warning users of account suspension. The attack uses AI-generated images in the steganography process. The FileFix technique is more elegant and less suspicious than ClickFix, using File Explorer instead of the Run dialog. The FileFix attack offers a broader range of high-value targets due to its use of File Explorer. Security researcher Eliad Kimhy predicts an increase in FileFix attacks in the near future.

UNC6040 and UNC6395 Target Salesforce Platforms in Data Theft Campaigns

The FBI has issued an alert about two cybercriminal groups, UNC6040 and UNC6395, targeting Salesforce platforms for data theft and extortion. UNC6395 exploited compromised OAuth tokens for the Salesloft Drift application, while UNC6040 used vishing campaigns and modified Salesforce tools to breach Salesforce instances. Both groups have been active since at least October 2024, impacting multiple organizations. UNC6040 has been linked to extortion activities, with Google attributing these to a separate cluster, UNC6240, which has claimed to be the ShinyHunters group. The ShinyHunters group, along with Scattered Spider and LAPSUS$, recently announced they are going dark, but experts warn that the threat persists. UNC6040 impersonated corporate IT support personnel to gain access to Salesforce environments and used modified versions of Salesforce's Data Loader to exfiltrate data. Salesforce re-enabled integrations with Salesloft technologies, except for the Drift app, which remains disabled.

Increased browser targeting by threat actors

Threat actors are increasingly targeting web browsers as a primary attack vector. This shift is driven by the browser's central role in accessing sensitive data and cloud applications, making it an attractive target for credential theft and session hijacking. High-profile incidents, such as the Snowflake breach, underscore the need for enhanced browser security measures. The browser's role in accessing sensitive data and cloud applications makes it a prime target for attackers. The Snowflake breach, which exploited stolen credentials, highlights the risks associated with browser-based attacks. Experts emphasize the need for stronger browser security to mitigate these threats. Browser-based attacks include phishing for credentials and sessions, malicious copy & paste (ClickFix), malicious OAuth integrations, malicious browser extensions, malicious file delivery, and exploiting stolen credentials and MFA gaps. These attacks exploit the browser's role in accessing business applications and data, making it crucial for security teams to focus on browser security.

GhostRedirector Campaign Targets Windows Servers with Rungan and Gamshen

A threat cluster named GhostRedirector has compromised at least 65 Windows servers in Brazil, Thailand, and Vietnam. The attacks deployed a passive C++ backdoor called Rungan and an IIS module named Gamshen. The threat actor has been active since at least August 2024. The primary goal of the attacks is to manipulate search engine results to boost the ranking of specific websites, including gambling sites. The campaign targets various sectors, including education, healthcare, insurance, transportation, technology, and retail. Initial access is gained through an SQL injection vulnerability, followed by the use of PowerShell to deliver additional tools. The threat actor is assessed with medium confidence to be China-aligned.