Cybersecurity

Rhysida, Not Novel but Still Dangerous: DNS Revelations

Rhysida, a new ransomware currently plaguing users may not be novel, but it's proving to be just as effective. Fortra published an in-depth analysis of the malware currently holding the data of healthcare organizations primarily based in the U.S. hostage. more

The Makings of ADHUBLLKA According to the DNS

It's not uncommon for cybercriminals to tweak an existing piece of malware and then call it a new creation. We've seen that happen even in malware's earliest days. It's actually happening more and more these days, especially with the rise of the malware-as-a-service (MaaS) business model. more

Probing the DNS for Signs of XLoader Abuse

XLoader has been plaguing macOS users since it was first discovered in 2021. Back then, though, it only posed a threat to those who opted to install Java on their systems. more

DNS Abuse and Redirection: Enough for a New JS Malware to Hide Behind?

DNS abuse combined with redirection seems to be gaining popularity as a stealth mechanism. We've just seen Decoy Dog employ the same tactic. More recently, a still-unnamed JavaScript (JS) malware has been wreaking havoc among WordPress site owners by abusing Google Public DNS to redirect victims to tech support scam sites. more

The Hidden Secret About Your DNS Zones and Combatting Phishing Campaigns

Phishing and scam campaigns are one of the biggest challenges for businesses and organizations across the globe and continue to evade traditional security measures year after year. more

Hot on the DNS Trail of the 16shop Phishing Kit Operators

Phishers the world over have been patronizing and utilizing the 16shop phishing kit since at least 2018. The kit's users have been known to steal data and money from the customers of some of today's biggest brands, including Amazon, American Express, and PayPal. more

Searching for Smishing Triad DNS Traces

Given the ubiquity of mobile phone usage, you'd think we'd all know by now how to tell legitimate from scammy text messages. Then again, cybercriminals are always on top of their game -- learning how the latest technologies work and finding ways to abuse them. more

Thawing IcedID Out Through a DNS Analysis

Evolution isn't only for humans and other living things. Apparently, malware can evolve, too, and IcedID is a good example. First detected as a banking trojan in 2017, IcedID continues to undergo updates that make it even more dangerous. In the past few months, IcedID variants have been observed to deliver ransomware payloads instead of performing its original function -- stealing financial data. more

Examining WoofLocker Under the DNS Lens

WoofLocker tech support scams have been wreaking havoc since 2017 but the threat actors behind it don't seem to be done yet. In fact, the threat may have become even more resilient. more

Decoy Dog, Too Sly to Leave DNS Traces?

Decoy Dog, a malware renowned for abusing the DNS, specifically by establishing command and control (C&C) via DNS queries, first reared its head most likely in early 2022. Given its sly nature, the DNS malware has been used to successfully steal data from organizations throughout Russia and other Eastern European nations. more