Is ‘REvil’ the New GandCrab Ransomware?

July 15, 2019

The cybercriminals behind the GandCrab ransomware-as-a-service (RaaS) offering recently announced they were closing up shop and retiring after having allegedly earned more than $2 billion in extortion payments from victims. But a growing body of evidence suggests the GandCrab team have instead quietly regrouped behind a more exclusive and advanced ransomware program known variously as “REvil,” “Sodin,” and “Sodinokibi.”

Who’s Behind the GandCrab Ransomware?

July 8, 2019

The crooks behind an affiliate program that paid cybercriminals to install the destructive and wildly successful GandCrab ransomware strain announced on May 31, 2019 they were terminating the program after allegedly having earned more than $2 billion in extortion payouts from victims. What follows is a deep dive into who may be responsible for recruiting new members to help spread the contagion.

A Closer Look at the Snatch Data Ransom Group

September 30, 2023

Earlier this week, KrebsOnSecurity revealed that the darknet website for the Snatch ransomware group was leaking data about its users and the crime gang’s internal operations. Today, we’ll take a closer look at the history of Snatch, its alleged founder, and their claims that everyone has confused them with a different, older ransomware group by the same name.

At Request of U.S., Russia Rounds Up 14 REvil Ransomware Affiliates

January 14, 2022

The Russian government said today it arrested 14 people accused of working for “REvil,” a particularly aggressive ransomware group that has extorted hundreds of millions of dollars from victim organizations. The Russian Federal Security Service (FSB) said the actions were taken in response to a request from U.S. officials, but many experts believe the crackdown is part of an effort to reduce tensions over Russian President Vladimir Putin’s decision to station 100,000 troops along the nation’s border with Ukraine.

Ransomware Gangs and the Name Game Distraction

August 5, 2021

It’s nice when ransomware gangs have their bitcoin stolen, malware servers shut down, or are otherwise forced to disband. We hang on to these occasional victories because history tells us that most ransomware moneymaking collectives don’t go away so much as reinvent themselves under a new name, with new rules, targets and weaponry. Indeed, some of the most destructive and costly ransomware groups are now in their third incarnation over as many years.

Reinvention is a basic survival skill in the cybercrime business. Among the oldest tricks in the book is to fake one’s demise or retirement and invent a new identity. A key goal of such subterfuge is to throw investigators off the scent or to temporarily direct their attention elsewhere.

Cybercriminal syndicates also perform similar disappearing acts whenever it suits them. These organizational reboots are an opportunity for ransomware program leaders to set new ground rules for their members — such as which types of victims aren’t allowed (e.g., hospitals, governments, critical infrastructure), or how much of a ransom payment an affiliate should expect for bringing the group access to a new victim network.

Try This One Weird Trick Russian Hackers Hate

May 17, 2021

In a Twitter discussion last week on ransomware attacks, KrebsOnSecurity noted that virtually all ransomware strains have a built-in failsafe designed to cover the backsides of the malware purveyors: They simply will not install on a Microsoft Windows computer that already has one of many types of virtual keyboards installed — such as Russian or Ukrainian. So many readers had questions in response to the tweet that I thought it was worth a blog post exploring this one weird cyber defense trick.

A Closer Look at the DarkSide Ransomware Gang

May 11, 2021

The FBI confirmed this week that a relatively new ransomware group known as DarkSide is responsible for an attack that caused Colonial Pipeline to shut down 5,550 miles of pipe, stranding countless barrels of gasoline, diesel and jet fuel on the Gulf Coast. Here’s a closer look at the DarkSide cybercrime gang, as seen through their negotiations with a recent U.S. victim that earns $15 billion in annual revenue.

This Service Helps Malware Authors Fix Flaws in their Code

May 18, 2020

Almost daily now there is news about flaws in commercial software that lead to computers getting hacked and seeded with malware. But the reality is most malicious software also has its share of security holes that open the door for security researchers or ne’er-do-wells to liberate or else seize control over already-hacked systems. Here’s a look at one long-lived malware vulnerability testing service that is used and run by some of the Dark Web’s top cybercriminals.

Ransomware at Colorado IT Provider Affects 100+ Dental Offices

December 7, 2019

A Colorado company that specializes in providing IT services to dental offices suffered a ransomware attack this week that is disrupting operations for more than 100 dentistry practices, KrebsOnSecurity has learned.

Multiple sources affected say their IT provider, Englewood, Colo. based Complete Technology Solutions (CTS), was hacked, allowing a potent strain of ransomware known as “Sodinokibi” or “rEvil” to be installed on computers at more than 100 dentistry businesses that rely on the company for a range of services — including network security, data backup and voice-over-IP phone service.