CoffeeLoader Uses GPU-Based Armoury Packer to Evade EDR and Antivirus Detection

Cybersecurity researchers are calling attention to a new sophisticated malware called CoffeeLoader that's designed to download and execute secondary payloads. The malware, according to Zscaler ThreatLabz, shares behavioral similarities with another known malware loader known as SmokeLoader. "The...

Rise in XorDdos: A deeper look at the stealthy DDoS malware targeting Linux devices

In the last six months, we observed a 254% increase in activity from a Linux trojan called XorDdos. First discovered in 2014 by the research group MalwareMustDie, XorDdos was named after its denial-of-service-related activities on Linux endpoints and servers as well as its usage of XOR-based...

The evolution of a Mac trojan: UpdateAgent’s progression

Our discovery and analysis of a sophisticated Mac trojan in October exposed a year-long evolution of a malware family—and depicts the rising complexity of threats across platforms. The trojan, tracked as UpdateAgent, started as a relatively basic information-stealer but was observed distributing...

Domen toolkit gets back to work with new malvertising campaign

Last year, we documented a new social engineering toolkit we called "Domen" being used in the wild. Threat actors were using this kit to trick visitors into visiting compromised websites and installing malware under the guise of a browser update or missing font. Despite being a robust toolkit, we...

Emotet Campaign Ramps Up with Mass Email Harvesting Module

A large-scale spam campaign has launched, spreading the Emotet banking trojan. Worryingly, the offensive has launched about a week after a fresh module for mass email-harvesting was detected for the malware. Emotet is technically a banking trojan, but it’s most often used as a dropper for a varie...