ION starts bringing customers back online after LockBit ransomware attack

ION Group, a financial software firm, is reportedly beginning to bring clients back online after being hit by a ransomware attack late last week. The Russian-linked LockBit ransomware group claimed responsibility for attacking a division of ION Group, which affecting 42 clients in Europe and the...

Ransomware Targets Outdated VMware ESXi Hypervisors: Protect Your Systems Now!

Updated on February 8, 2023 at 2:40 PM Pacific Standard Time: This article has been updated with EVALUATE Vendor-Suggested Mitigation with Policy Compliance PC Updated on February 7, 2023 at 9:05 PM Pacific Standard Time: This article has been updated with the latest information on the...

CISA and FBI Release ESXiArgs Ransomware Recovery Guidance

Today, CISA and the Federal Bureau of Investigation FBI released a joint Cybersecurity Advisory, ESXiArgs Ransomware Virtual Machine Recovery Guidance. This advisory describes the ongoing ransomware campaign known as “ESXiArgs.” Malicious cyber actors may be exploiting known vulnerabilities in...

Hackers Exploit Vulnerabilities in Sunlogin to Deploy Sliver C2 Framework

Threat actors are leveraging known flaws in Sunlogin software to deploy the Sliver command-and-control C2 framework for carrying out post-exploitation activities. The findings come from AhnLab Security Emergency response Center ASEC, which found that security vulnerabilities in Sunlogin, a remote...

Tackling the New Cyber Insurance Requirements: Can Your Organization Comply?

With cyberattacks around the world escalating rapidly, insurance companies are ramping up the requirements to qualify for a cyber insurance policy. Ransomware attacks were up 80% last year, prompting underwriters to put in place a number of new provisions designed to prevent ransomware and stem t...

Ransomware attacks targeting VMware ESXi servers: everything you need to know

Recent attacks leverage CVE-2021-21974 to install ransomware on VMWare ESXi servers. Security teams are advised to patch and stay vigilant for indicators of compromise...

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

The first-ever Linux variant of the Clop ransomware has been detected in the wild, but with a faulty encryption algorithm that has made it possible to reverse engineer the process. "The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying...

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

The first-ever Linux variant of the Clop ransomware has been detected in the wild, but with a faulty encryption algorithm that has made it possible to reverse engineer the process. "The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying...

VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

VMware on Monday said it found no evidence that threat actors are leveraging an unknown security flaw, i.e., a zero-day, in its software as part of an ongoing ransomware attack spree worldwide. "Most reports state that End of General Support EoGS and/or significantly out-of-date products are bein...

VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

VMware on Monday said it found no evidence that threat actors are leveraging an unknown security flaw, i.e., a zero-day, in its software as part of an ongoing ransomware attack spree worldwide. "Most reports state that End of General Support EoGS and/or significantly out-of-date products are bein...

Florida hospital takes entire IT systems offline after 'ransomware attack'

Tallahassee Memorial Healthcare TMH, a major hospital system in northern Florida, has reportedly been experiencing an "IT security issue" since Thursday evening, which impacted some of its IT systems. When TMH learned of the issue, it took its entire IT systems offline as a precaution and contact...

CISA Releases ESXiArgs Ransomware Recovery Script

CISA has released a recovery script for organizations that have fallen victim to ESXiArgs ransomware. The ESXiArgs ransomware encrypts configuration files on vulnerable ESXi servers, potentially rendering virtual machines VMs unusable. CISA recommends organizations impacted by ESXiArgs evaluate t...

Ransomware Campaign Compromising VMware ESXi Servers

On February 3, 2023, French web hosting provider OVH and French CERT issued warnings about a ransomware campaign that was targeting VMware ESXi servers worldwide with a new ransomware strain dubbed “ESXiArgs.” The campaign appears to be leveraging CVE-2021-21974, a nearly two-year-old heap overfl...

Ransomware and Commodity Loader Topic Summary Report: Cisco Talos Year in Review 2022

The ransomware space is dynamic, continually adapting to changes in the geopolitical environment, actions by defenders, and efforts by law enforcement, which increased in scope and intensity in 2022. This leads groups to rebrand under different names, shut down operations, and form new strategic...

[update]Two year old vulnerability used in ransomware attack against VMware ESXi

On Friday and over the weekend, several Computer Emergency Response Teams CERTs sounded the alarm about an ongoing large scale ransomware attack on VMware ESXi virtual machines. With some discrepancies between Shodan queries from various researchers, most agree that an estimated 500 entities were...

New Wave of Ransomware Attacks Exploiting VMware Bug to Target ESXi Servers

VMware ESXi hypervisors are the target of a new wave of attacks designed to deploy ransomware on compromised systems. "These attack campaigns appear to exploit CVE-2021-21974, for which a patch has been available since February 23, 2021," the Computer Emergency Response Team CERT of France said i...

New Wave of Ransomware Attacks Exploiting VMware Bug to Target ESXi Servers

VMware ESXi hypervisors are the target of a new wave of attacks designed to deploy ransomware on compromised systems. "These attack campaigns appear to exploit CVE-2021-21974, for which a patch has been available since February 23, 2021," the Computer Emergency Response Team CERT of France said i...

Threat Round up for January 27 to February 3

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between Jan. 27 and Feb. 3. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

The rise of multi-threat ransomware

Today we have a ten minute YouTube expedition into the murky world of ransomware. In the video, "The rise of multi-threat ransomware" embedded below, I cover a couple of key talking points that always seem to come up in conversation. Single, double, triple? The video covers how ransomware made th...

Unveiling the Advanced Rust-based Nevada Ransomware

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary A new type of ransomware named "Nevada Ransomware" has been identified. The creators of this ransomware have established an affiliate program that was initially introduced in the RAMP underground...