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Despite Catastrophic Hacks, Ransomware Payments Dropped Dramatically Last Year
Ransomware gangs continued to wreak havoc in 2024, but new research shows that the amounts victims paid these cybercriminals fell by hundreds of millions of dollars...
A week in security (January 27 – February 2)
Last week on Malwarebytes Labs: ClickFix vs. traditional download in new DarkGate campaign Cybercrime gets a few punches on the nose Microsoft advertisers phished via malicious Google ads The DeepSeek controversy: Authorities ask where does the data come from and how safe is it? These are the 10...
One policy to rule them all
Windows group policies are a powerful management tool that allows administrators to define and control user and computer settings within a domain environment in a centralized manner. While group policies offer functionality and utility, they are unfortunately a prime target for attackers. In...
Talos IR trends Q4 2024: Web shell usage and exploitation of public-facing applications spike
Threat actors increasingly deployed web shells against vulnerable web applications and primarily exploited vulnerable or unpatched public-facing applications to gain initial access in Q4, a notable shift from previous quarters. The functionality of the web shells and targeted web applications...
How Interlock Ransomware Infects Healthcare Organizations
Ransomware attacks have reached an unprecedented scale in the healthcare sector, exposing vulnerabilities that put millions at risk. Recently, UnitedHealth revealed that 190 million Americans had their personal and healthcare data stolen during the Change Healthcare ransomware attack, a figure th...
CISA Under Trump
Jen Easterly is out as the Director of CISA. Read her final interview: There's a lot of unfinished business. We have made an impact through our ransomware vulnerability warning pilot and our pre-ransomware notification initiative, and I'm really proud of that, because we work on preventing somebo...
Ransomware Targets ESXi Systems via Stealthy SSH Tunnels for C2 Operations
Cybersecurity researchers have found that ransomware attacks targeting ESXi systems are also leveraging the access to repurpose the appliances as a conduit to tunnel traffic to command-and-control C2 infrastructure and stay under the radar. "ESXi appliances, which are unmonitored, are increasingl...
UnitedHealth almost doubles victim numbers from massive Change Healthcare data breach
UnitedHealth says it now estimates that the data breach on its subsidiary Change Healthcare affected 190 million people, nearly doubling its previous estimate from October. In May, UnitedHealth CEO Andrew Witty estimated that the ransomware attack compromised the data of a third of US individuals...
The 2024 Ransomware Landscape: Looking back on another painful year
The ransomware landscape in 2024 continued to evolve at a rapid pace, outgrowing many of the trends we saw in 2023. Threat actors remained relentless and innovative, targeting organizations of all sizes and sectors. In this post, we’ll examine the latest data points, discuss notable groups, and...
The 2024 Ransomware Landscape: Looking back on another painful year
The ransomware landscape in 2024 continued to evolve at a rapid pace, outgrowing many of the trends we saw in 2023. Threat actors remained relentless and innovative, targeting organizations of all sizes and sectors. In this post, we’ll examine the latest data points, discuss notable groups, and...
Cyber Threat Landscape Q&A with Trellix Head of Threat Intelligence John Fokker
Cyber Threat Landscape Q&A with Trellix Head of Threat Intelligence John Fokker By Trellix · January 27, 2025 As we step into 2025, it's time to reflect on the seismic changes that shaped the cybersecurity landscape in 2024 and anticipate what's on the horizon for 2025. The past year saw...
UnitedHealth Group’s Massive Data Breach Impacts 190 Million Americans
UnitedHealth Group has confirmed that a ransomware attack targeted its subsidiary, Change Healthcare, in February 2024, impacting 190…...
Experts Find Shared Codebase Linking Morpheus and HellCat Ransomware Payloads
An analysis of HellCat and Morpheus ransomware operations has revealed that affiliates associated with the respective cybercrime entities are using identical code for their ransomware payloads. The findings come from SentinelOne, which analyzed artifacts uploaded to the VirusTotal malware scannin...
Under Trump, US Cyberdefense Loses Its Head
Chinese hacks, rampant ransomware, and Donald Trump’s budget cuts all threaten US security. In an exit interview with WIRED, former CISA head Jen Easterly argues for her agency’s survival...
TRIPLESTRENGTH Hits Cloud for Cryptojacking, On-Premises Systems for Ransomware
Google on Wednesday shed light on a financially motivated threat actor named TRIPLESTRENGTH for its opportunistic targeting of cloud environments for cryptojacking and on-premise ransomware attacks. "This actor engaged in a variety of threat activity, including cryptocurrency mining operations on...
GRAU DATA Blocky 安全漏洞
GRAU DATA Blocky is a ransomware protection software from GRAU DATA, Germany. A security vulnerability exists in GRAU DATA Blocky versions prior to 3.1, which stems from a client-side enforcement of server-side security vulnerability in Blocky-Gui that allows an attacker to gain full access to al...
Imperva Protects Against the Exploited CVEs in the Cleo Data Theft Attacks
The Clop ransomware group has once again demonstrated its ability to exploit vulnerabilities to compromise sensitive systems. As Cleo—a managed file transfer provider for businesses—grapples with the aftermath of Clop’s targeted attack on their systems, the spotlight turns to CVE-2024-50623 and...
Cybersecurity 2025: Qualys’ Predictions for Navigating the Evolving Threat Landscape
Cybersecurity in 2024 was a year of contrasts—marked by rising threats and groundbreaking innovations. The surge in ransomware attacks and exploitation of vulnerabilities exposed weaknesses in core systems and software, while the rapid adoption of AI tools brought both risks and opportunities to...
Python-Based Malware Powers RansomHub Ransomware to Exploit Network Flaws
Cybersecurity researchers have detailed an attack that involved a threat actor utilizing a Python-based backdoor to maintain persistent access to compromised endpoints and then leveraged this access to deploy the RansomHub ransomware throughout the target network. According to GuidePoint Security...