Krebs on Security

MAY 18, 2020

Almost daily now there is news about flaws in commercial software that lead to computers getting hacked and seeded with malware. 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. is cybercrime forum.

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Krebs on Security

JANUARY 27, 2021

and Bulgarian authorities this week seized the darkweb site used by the NetWalker ransomware cybercrime group to publish data stolen from its victims. The victim shaming site maintained by the NetWalker ransomware group, after being seized by authorities this week. ” Image: Chainalysis.

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The Last Watchdog

APRIL 7, 2025

Despite advanced AI detection and telemetry analysis offered in todays EDR solutions, modern infostealer malware is designed to evade even the most sophisticated defenses, using tactics like polymorphic malware, memory-only execution, and exploitation of zero-day vulnerabilities or outdated software.

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Krebs on Security

OCTOBER 1, 2020

Companies victimized by ransomware and firms that facilitate negotiations with ransomware extortionists could face steep fines from the U.S. While it may seem unlikely that companies victimized by ransomware might somehow be able to know whether their extortionists are currently being sanctioned by the U.S. Image: Shutterstock.

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Schneier on Security

JANUARY 10, 2023

I don’t know how much of a thing this will end up being, but we are seeing ChatGPT-written malware in the wild. “It’s still too early to decide whether or not ChatGPT capabilities will become the new favorite tool for participants in the Dark Web,” company researchers wrote.

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Krebs on Security

MAY 11, 2020

Diebold Nixdorf , a major provider of automatic teller machines (ATMs) and payment technology to banks and retailers, recently suffered a ransomware attack that disrupted some operations. Suspecting a ransomware attack, Diebold said it immediately began disconnecting systems on that network to contain the spread of the malware.

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Krebs on Security

JULY 1, 2020

We’ve seen an ugly trend recently of tech news stories and cybersecurity firms trumpeting claims of ransomware attacks on companies large and small, apparently based on little more than the say-so of the ransomware gangs themselves. Such coverage is potentially quite harmful and plays deftly into the hands of organized crime.

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Krebs on Security

JUNE 16, 2021

Authorities in Ukraine this week charged six people alleged to be part of the CLOP ransomware group , a cybercriminal gang said to have extorted more than half a billion dollars from victims. The CLOP gang seized on those flaws to deploy ransomware to a significant number of Accellion’s FTA customers , including U.S.

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Krebs on Security

JANUARY 28, 2022

In December 2021, researchers discovered a new ransomware-as-a-service named ALPHV (a.k.a. “ BlackCat “), considered to be the first professional cybercrime group to create and use a ransomware strain written in the Rust programming language. Image: Varonis. Image: Varonis. The upshot? ” Meanwhile, the U.S.

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Security Affairs

MARCH 24, 2025

The FBI warns of a significant increase in scams involving free online document converters to infect users with malware. The FBI warns that threat actors use malicious online document converters to steal users sensitive information and infect their systems with malware. ” reads the alert. ” continues the alert.

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Schneier on Security

JUNE 2, 2021

The New York Times has a long story on the DarkSide ransomware gang. A glimpse into DarkSide’s secret communications in the months leading up to the Colonial Pipeline attack reveals a criminal operation on the rise, pulling in millions of dollars in ransom payments each month.

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Security Affairs

OCTOBER 22, 2024

Experts warn of a new wave of attacks involving the Bumblebee malware, months after Europol’s ‘ Operation Endgame ‘ that disrupted its operations in May. The Bumblebee malware loader has resurfaced in new attacks, four months after Europol disrupted it during “ Operation Endgame ” in May.

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Security Affairs

OCTOBER 27, 2024

Russian authorities sentenced four members of the REvil ransomware operation to several years in prison in Russia. Four former members of the REvil ransomware group were sentenced in Russia for hacking and money laundering, marking a rare case of Russian gang members being convicted in the country. “On Friday, October 25, the St.

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Schneier on Security

MAY 18, 2021

A lot of Russian malware — the malware that targeted the Colonial Pipeline, for example — won’t install on computers with a Cyrillic keyboard installed. Will installing one of these languages keep your Windows computer safe from all malware? Absolutely not.

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Security Affairs

MARCH 8, 2025

The Akira ransomware gang exploited an unsecured webcam to bypass EDR and launch encryption attacks on a victim’s network. Cybersecurity researchers at S-RM team discovered a novel attack technique used by the Akira ransomware gang. Realizing EDR was active, they pivoted by scanning the network for vulnerable devices.

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Malwarebytes

DECEMBER 2, 2024

The US Department of Justice has charged a Russian national named Evgenii Ptitsyn with selling, operating, and distributing a ransomware variant known as “Phobos” during a four-year cybercriminal campaign that extorted at least $16 million from victims across the world.

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Security Affairs

OCTOBER 20, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape. Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

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Security Affairs

FEBRUARY 13, 2025

A November 2024 RA World ransomware attack on an Asian software firm used a tool linked to China-linked threat actors. Broadcom researchers reported that threat actors behind an RA World ransomware attack against an Asian software and services firm employed a tool that was explosively associated in the past with China-linked APT groups.

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Krebs on Security

NOVEMBER 14, 2024

Shefel claims the true mastermind behind the Target and other retail breaches was Dmitri Golubov , an infamous Ukrainian hacker known as the co-founder of Carderplanet, among the earliest Russian-language cybercrime forums focused on payment card fraud. “I’m also godfather of his second son.”

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Krebs on Security

JUNE 2, 2020

The criminal group behind the REvil ransomware enterprise has begun auctioning off sensitive data stolen from companies hit by its malicious software. Over the past 24 hours, the crooks responsible for spreading the ransom malware “REvil” (a.k.a. A partial screenshot from the REvil ransomware group’s Dark Web blog.

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Security Affairs

NOVEMBER 21, 2024

Mexico is investigating a ransomware attack targeting its legal affairs office, as confirmed by the president amidst growing cybersecurity concerns. Mexico’s president announced the government is investigating an alleged ransomware hack that targeted the administration’s legal affairs office. Knight, also known as Cyclops 2.0,

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Krebs on Security

OCTOBER 31, 2022

A 26-year-old Ukrainian man is awaiting extradition from The Netherlands to the United States on charges that he acted as a core developer for Raccoon , a popular “malware-as-a-service” offering that helped paying customers steal passwords and financial data from millions of cybercrime victims. According to the U.S.

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Krebs on Security

JUNE 9, 2020

that their information technology systems had been infiltrated by hackers who specialize in deploying ransomware. Nevertheless, on Friday, June 5, the intruders sprang their attack, deploying ransomware and demanding nearly $300,000 worth of bitcoin. The average ransomware payment by ransomware strain. Image: Crowdstrike.

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Security Affairs

NOVEMBER 8, 2024

Texas oilfield supplier Newpark Resources suffered a ransomware attack that disrupted its information systems and business applications. Texas oilfield supplier Newpark Resources revealed that a ransomware attack on October 29 disrupted access to some of its information systems and business applications.

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Security Affairs

DECEMBER 4, 2024

BT Group (formerly British Telecom)’s Conferencing division shut down some of its servers following a Black Basta ransomware attack. British multinational telecommunications holding company BT Group (formerly British Telecom) announced it has shut down some of its servers following a Black Basta ransomware attack.

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Krebs on Security

NOVEMBER 19, 2024

“The threat actor did not deploy malware or tamper with any customer files within the environment,” the notice reads. The simplest explanation is that something spooked abyss0 enough for them to abandon a number of pending sales opportunities, in addition to a well-manicured cybercrime persona. ” On Nov.

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Security Affairs

NOVEMBER 29, 2024

Russian authorities arrested ransomware affiliate Mikhail Matveev, aka Wazawaka, for developing malware and ties to hacking groups. In May 2023, the US Justice Department charged Russian national Mikhail Pavlovich Matveev for his alleged role in multiple ransomware attacks. ” reported RIA Novosti.

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Krebs on Security

MARCH 1, 2022

A Ukrainian security researcher this week leaked several years of internal chat logs and other sensitive data tied to Conti , an aggressive and ruthless Russian cybercrime group that focuses on deploying its ransomware to companies with more than $100 million in annual revenue. “Sorry, but this is f *d up. 428 hospitals.”

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Krebs on Security

OCTOBER 28, 2020

26, KrebsOnSecurity began following up on a tip from a reliable source that an aggressive Russian cybercriminal gang known for deploying ransomware was preparing to disrupt information technology systems at hundreds of hospitals, clinics and medical care facilities across the United States. On Monday, Oct. hospitals and healthcare providers.”

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Security Affairs

DECEMBER 7, 2024

The 8Base ransomware group attacked Croatia’s Port of Rijeka, stealing sensitive data, including contracts and accounting info. A cyber attack hit the Port of Rijeka in Croatia, the 8Base ransomware group claimed responsibility for the security breach. The Port of Rijeka (Luka Rijeka d.d.),

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Krebs on Security

FEBRUARY 20, 2024

authorities have seized the darknet websites run by LockBit , a prolific and destructive ransomware group that has claimed more than 2,000 victims worldwide and extorted over $120 million in payments. First surfacing in September 2019, the gang is estimated to have made hundreds of millions of U.S. Ivan Gennadievich Kondratyev , a.k.a.

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Krebs on Security

JUNE 1, 2023

This post is a deep dive on “ Megatraffer ,” a veteran Russian hacker who has practically cornered the underground market for malware focused code-signing certificates since 2015. One of Megatraffer’s ads on an English-language cybercrime forum. WHO IS MEGATRAFFER?

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The Last Watchdog

FEBRUARY 4, 2025

Malware reverse engineering to combat ransomware: SpyCloud specializes in the tracking and analyzing of malware with deep insights into pervasive infostealers such as Lumma C2 , Redline Stealer, Vidar, and more as they are often a precursor to ransomware.

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Security Affairs

MARCH 30, 2025

The Walmart-owned membership warehouse club chain Sams Club is investigating claims of a Cl0p ransomware security breach. This week, Cl0p ransomware group listed Sams Club among the victims of its December Cleo software exploit , accusing it of ignoring security. Walmart owned Sams Club has allegedly been breached by Clop Ransomware.

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Security Affairs

DECEMBER 26, 2024

A ransomware attack on Pittsburgh Regional Transit (PRT) was the root cause of the agency’s service disruptions. On December 23, 2024, Pittsburgh Regional Transit (PRT) announced it was actively responding to a ransomware attack that was first detected on Thursday, December 19.

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Krebs on Security

MAY 13, 2024

and Australia in sanctioning and charging a Russian man named Dmitry Yuryevich Khoroshev as the leader of the infamous LockBit ransomware group. was used by a Russian-speaking member called Pin on the English-language cybercrime forum Opensc. Last week, the United States joined the U.K. “P.S.

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Security Affairs

FEBRUARY 1, 2025

Indian multinational technology company Tata Technologies suspended some IT services following a ransomware attack. Indian multinational Tata Technologies , a Tata Motors subsidiary, suspended some IT services following a ransomware attack. A few days later, the ransomware gang Hive leaked the alleged stolen files on its Tor leak site.

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