DNS Security

A DNS Investigation of the Typhoon 2FA Phishing Kit

Bleeping Computer recently reported that a phishing-as-a-service (PhaaS) available in cybercriminal forums dubbed "Typhoon 2FA" has the ability to compromise Microsoft 365 and Google accounts even if users have two-factor authentication (2FA) enabled.

Examining a U.S. Tax Scammer’s Web Infrastructure through the DNS Lens

The 2024 U.S. tax season is well underway, and as usual, scams of all kinds targeting taxpayers and causing the Internal Revenue Service (IRS) problems have cropped up. One such ongoing malicious campaign has explicitly been trailing its sights on small business owners and the self-employed.

Hunting for TimbreStealer Malware Artifacts in the DNS

A new info-stealing malware called "TimbreStealer" is in town. Cisco Talos detected its distribution through a phishing campaign targeting Mexico.

Uncovering Suspicious Download Pages Linked to App Installer Abuse

Threat actors have been abusing App Installer, a Windows 10 feature that makes installing applications more convenient. The abuse could lead to ransomware distribution and was likely carried out by financially motivated actors Storm-0569, Storm-1113, Sangria Tempest, and Storm-1674.

On the DNS Trail of the Rise of macOS Backdoors

macOS has been gaining the unwanted attention of more and more backdoor operators since late 2023. In February 2024, Bitdefender uncovered RustDoor, which was written in Rust and possibly has ties to the operators of a Windows ransomware.

Checking Out the DNS for More Signs of ResumeLooters

Group-IB uncovered ResumeLooters, a threat actor group specializing in victimizing job hunters to steal their personally identifiable information (PII).

WhoisXML API Publishes a New Study of 7 APT Groups That Have Targeted North America

In the past two decades, at least 41 advanced persistent threat (APT) groups have launched attacks on entities and organizations based in North America.

Searching for Potential Propaganda Vehicle Presence in the DNS

The Citizen Lab recently uncovered an ongoing online propaganda campaign they have dubbed "PAPERWALL" that has been targeting local news outlets across 30 countries in Europe, Asia, and Latin America.

Following the VexTrio DNS Trail

VexTrio, a traffic distribution system (TDS) provider believed to be an affiliate of ClearFake and SocGholish, among other threat actors, has been active since 2017.

Tracing Ivanti Zero-Day Exploitation IoCs in the DNS

Among the latest to suffer from zero-day exploitation is Ivanti, a software company providing endpoint management and remote access solutions to various organizations, including U.S. federal agencies.