New Rust-based Fickle Malware Uses PowerShell for UAC Bypass and Data Exfiltration

A new Rust-based information stealer malware called Fickle Stealer has been observed being delivered via multiple attack chains with the goal of harvesting sensitive information from compromised hosts. Fortinet FortiGuard Labs said it's aware of four different distribution methods -- namely VBA...

QBot banker delivered through business correspondence

In early April, we detected a significant increase in attacks that use banking Trojans of the QBot family aka QakBot, QuackBot, and Pinkslipbot. The malware would be delivered through e-mail letters written in different languages — variations of them were coming in English, German, Italian, and...

The Evolving Tactics of Vidar Stealer: From Phishing Emails to Social Media

The notorious information-stealer known as Vidar is continuing to leverage popular social media services such as TikTok, Telegram, Steam, and Mastodon as an intermediate command-and-control C2 server. "When a user creates an account on an online platform, a unique account page that can be accesse...

Woody RAT: A new feature-rich malware spotted in the wild

This blog post was authored by Ankur Saini and Hossein Jazi The Malwarebytes Threat Intelligence team has identified a new Remote Access Trojan we are calling Woody Rat that has been in the wild for at least one year. This advanced custom Rat is mainly the work of a threat actor that targets...

Woody RAT: A new feature-rich malware spotted in the wild

This blog post was authored by Ankur Saini and Hossein Jazi The Malwarebytes Threat Intelligence team has identified a new Remote Access Trojan we are calling Woody Rat that has been in the wild for at least one year. This advanced custom Rat is mainly the work of a threat actor that targets...

Evolution of JSWorm ransomware

Introduction Over the past few years, the ransomware threat landscape has been gradually changing. We have been witness to a paradigm shift. From the massive outbreaks of 2017, such as WannaCry, NotPetya, and Bad Rabbit, a lot of ransomware actors have moved to the covert but highly profitable...

The return of Fantomas, or how we deciphered Cryakl

In early February this year, Belgian police seized the C&C servers of the infamous Cryakl cryptor. Soon afterwards, they handed over the private keys to our experts, who used them to update the free RakhniDecryptor tool for recovering files encrypted by the malware. The ransomware, which for year...

Excerpts from The Ransomware Economy: The Ransomware Supply Chain

Carbon Black recently published an investigative report on the Dark Web marketplace for ransomware. This is an excerpt from that report, which you can find here. For more information about the rise of ransomware, and what you can do about it, check out the Ransomware Epidemic: Stop Bad Rabbit In...