Ransomware & Extortion

Cybersecurity news in this category

๐Ÿ‡ท๐Ÿ‡บAug 31

Ragnarรถk: F6 Investigates VantaCore Ransomware Attacks and Suspected Thor Rebrand

F6's Digital Forensics Laboratory has identified a new ransomware group called VantaCore that has struck at least seven Russian organizations with multimillion-dollar ransom demands. Researchers assess VantaCore as a rebrand of the previously known pro-Ukrainian Thor group, part of a broader consolidation among such actors in 2025โ€“2026. The group abandoned LockBit 3 Black and Babuk in favor of its own VantaCore ransomware built on similar foundations, while deploying custom tools including VantaCoreLoader, VantaCoreRAT, and the SnowKiller BYOVD utility. VantaCore maintains a Tor-based data leak site launched no later than June 2026 and uses double and triple extortion tactics, selling or publicly releasing stolen data after encryption. Initial access relies on exposed RDP, VPN, public application vulnerabilities, and compromised partner credentials, followed by lateral movement via legitimate accounts and SMB/RDP. The group disables security products, clears logs, and destroys backups using Bootice before deploying its ChaCha20/X25519 ransomware via manual RDP sessions or automated loaders.

Habr
๐Ÿ‡ต๐Ÿ‡นAug 31

Ransomware Group TITAN Deploys Local AI on AMD EPYC Servers to Accelerate Stolen Data Analysis

The TITAN ransomware group has announced the integration of an on-premises artificial intelligence platform designed to process up to 700 GB of exfiltrated data per hour. Operating as a ransomware-as-a-service model since May 2026, TITAN combines file encryption with data theft and has already published 24 victims across 10 countries. Manufacturing and professional services firms account for 29 percent of the targeted organizations. The AI system runs locally on AMD EPYC servers with GPU acceleration and automatically classifies financial documents, legal records, personal data, trade secrets, and intellectual property. It further identifies information with high reputational or regulatory impact, maps corporate and personal relationships, and estimates potential penalties under data-protection laws. The group also claims the platform can generate automated notifications to regulators and media outlets to intensify extortion pressure.

BoletimSec
๐Ÿ‡ท๐Ÿ‡บAug 29

VantaCore Ransomware Group Targets Russian Businesses with Custom Toolkit and Triple Extortion

Security researchers at F6 have identified a new ransomware operation called VantaCore that is actively attacking small and medium-sized Russian companies. The group employs a custom set of tools including VantaCoreLoader, VantaCoreRAT, and its own encryption malware to conduct double and triple extortion campaigns. Initial access is gained through poorly secured RDP and VPN services, vulnerable public applications, and compromised partner accounts. Once inside the network, attackers move laterally using SMB and RDP with legitimate credentials, deploy Tactical RMM, and install their backdoor before disabling security products with an AV/EDR killer. Victims face data theft, backup destruction, and encryption, followed by threats to publish or sell stolen information if ransom demands in the millions of dollars are not met. F6 assesses that VantaCore may be a rebranded version of the previously known pro-Ukrainian group Thor, based on similar Tor negotiation chat design and a THOR rune icon on the leak site that appeared no later than June 7, 2026.

AntiMalware
๐Ÿ‡จ๐Ÿ‡ณAug 28

Boston Scientific Hit by Cyber Attack: Global IT Outage Disrupts Orders and Shipments, Shares Drop

On August 25, Boston Scientific detected a cyber attack that compromised parts of its IT infrastructure, leading to widespread network interruptions across its global operations. The medical device giant, which generates over $16 billion in annual revenue and operates in more than 130 countries, saw customer order processing and product shipments halted in multiple regions. Wall Street Journal and Reuters reported the incident on August 26, after which the company's stock declined. While China operations remained unaffected due to regional system isolation, the company stated that full global recovery timelines remain unknown. The attack's specific methods, including any potential ransomware involvement or data exfiltration, have not been disclosed as third-party investigators continue their work. The event underscores the severe operational and patient-care risks when healthcare supply chains face cyber disruptions.

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๐Ÿ‡ต๐Ÿ‡นAug 28

Aurora Ransomware Affiliate Uses AI Assistant Cursor to Compromise Active Directory and VMware ESXi Servers

An affiliate of the Aurora ransomware group employed the AI-powered coding assistant Cursor to plan and execute targeted attacks against corporate environments, focusing on Active Directory and VMware ESXi servers. The campaign impacted more than 20 organizations between April and July 2026. The operator used Cursor to generate commands, refine exploitation techniques, and build attack sequences aimed at Windows infrastructure, particularly Active Directory Certificate Services (ADCS). Techniques included noPac exploitation combined with NTLM relay attacks leveraging PetitPotam, PrinterBug, and DFSCoerce to escalate privileges up to domain administrator level. After gaining access, the attackers collected and compressed large volumes of data for exfiltration before deploying the Aurora ransomware on Windows, Linux, and ESXi systems. The ESXi variant stops virtual machines prior to encryption to maximize impact on virtualized environments.

BoletimSec
๐Ÿ‡ท๐Ÿ‡บAug 26

7 Core Rules for Responding to Ransomware and Infrastructure Breaches

The article outlines practical first-response steps for organizations facing ransomware encryption or infrastructure compromise for the first time. It stresses isolating affected systems from the network without powering them down, preserving volatile data and logs, and avoiding premature cleanup or backup restoration. The guidance covers closing obvious compromised access paths, documenting observed facts and actions, and stopping further ad-hoc changes once containment is achieved. These measures help retain forensic artifacts that investigators need to determine the initial access vector and attacker movement. The rules are presented as a starting point for teams without formal incident response procedures.

Habr
๐Ÿ‡ท๐Ÿ‡บAug 25

IT Elements 2026 to Stage IT Apocalypse Simulations and Critique Russian Vendors

The IT Elements 2026 conference has unveiled its full program, centering on business continuity after successful cyberattacks, infrastructure failures, or technological disasters. Scheduled for September 9-10 at the Serp i Molot cultural center in Moscow, the event will host over one hundred reports, discussions, demonstrations, and master classes. The opening plenary will examine whether the primary-backup data center model remains viable, if the 3-2-1 backup rule still protects against modern ransomware, and whether CIOs or CISOs should own cyber resilience. Practical sessions will demonstrate a full Microsoft migration in 60 minutes, moving Exchange and MinIO to Russian alternatives, and a detailed review of domestic hyperconvergence strengths and weaknesses. Comparative test results for routers, NGFW, and VM systems will be presented without marketing gloss. Additional tracks will cover monitoring of corporate AI models from GPU to prompt under FSTEC Order No. 117, OWASP Top 10 for LLM, and MITRE ATLAS, alongside real-world cases from Rosatom, Beeline, Sber, and T-Bank. Trubnaya Metallurgicheskaya Kompaniya will simulate a 48-hour IT outage and show how to restart operations in half a day.

AntiMalware
๐Ÿ‡ต๐Ÿ‡นAug 24

LockBit Claims Breach of U.S. Bank, Sets September 2026 Deadline for Ransom Payment

The ransomware group LockBit has added U.S. Bank to its leak site, claiming to have stolen data from the financial institution and threatening to publish it unless a ransom is paid by September 3, 2026. U.S. Bank stated it is actively investigating the claims but has so far found no evidence of unauthorized network access or impact on internal systems. Lee Henderson, the bank's vice president of public affairs, confirmed that the institution is monitoring the situation and treating the allegations seriously. LockBit placed the bank's domain on its extortion portal on August 19 and has a history of resuming operations after a major international law enforcement disruption in 2024. The investigation remains ongoing, with the final scope depending on whether unauthorized access and data theft can be confirmed.

BoletimSec
๐Ÿ‡จ๐Ÿ‡ณAug 19

Sorry Ransomware Exploits cPanel Vulnerability to Directly Lock Linux Servers in Multiple Chinese Incidents

China's National Computer Virus Emergency Response Center has issued a warning about the Sorry ransomware, which targets exposed Linux web servers through a cPanel authorization vulnerability. The Go-based malware gains root access without any phishing or user interaction, disguises itself as the legitimate sshd process, and follows a six-stage attack chain that includes data exfiltration before encryption. It terminates databases, security tools, and backup services, then uses AES and RSA to encrypt files with a .sorry extension while demanding ransom via an encrypted communication tool. The campaign specifically affects small and medium-sized enterprises running cPanel on mainstream Linux distributions, including domestic Xinchuang systems. Attackers also scan internal networks for weak SSH credentials to spread laterally. The center urges immediate patching of cPanel, exposure reduction, strong passwords, offline backups, and avoidance of fake decryptors.

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๐Ÿ‡จ๐Ÿ‡ณAug 13

China Warns of New 'Sorry' Ransomware Targeting Exposed Linux Web Servers via cPanel Vulnerability CVE-2026-41940

China's National Computer Virus Emergency Response Center has issued an official alert after multiple incidents of the newly discovered 'Sorry' ransomware family struck Linux Web servers inside the country. The Go-language malware specifically targets internet-exposed servers running vulnerable versions of WebPros cPanel and can also run on domestic Xinchuang operating systems. Attackers exploit authorization flaw CVE-2026-41940 (CNNVD-202604-5641) to gain access, deploy the ransomware disguised as sshd processes, kill backup and security services, exfiltrate data, and encrypt files with AES and RSA before scanning for weak SSH credentials to spread laterally. The advisory states that no reliable decryption method currently exists once files receive the .sorry extension. Organizations are urged to immediately audit cPanel versions, inspect processes, restrict management interfaces, eliminate weak passwords on ports 22/2222/22222, and verify offline backups.

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๐Ÿ‡ต๐Ÿ‡นAug 11

Ransomware Groups Disable EDR, Backups and Windows Telemetry Before Encryption

Ransomware operators are increasingly focusing on disabling endpoint detection and response tools, backup systems, and Windows telemetry mechanisms prior to launching encryption. An analysis of the ten ransomware families with the lowest prevention rates in 2026 found that Play achieved only 13 percent of attacks blocked. BlackByte followed with 25 percent blocked and LockBit with 30 percent blocked. BabLock leverages a legitimate uninstaller to remove endpoint protection and terminates processes belonging to antivirus, EDR, backup, and database applications. It then clears the Security and System event logs to hinder incident response. LockBit 5.0 instead interferes with Event Tracing for Windows to reduce visibility for monitoring solutions. Additional families employ process injection, in-memory execution, registry modifications, file masquerading, and living-off-the-land binaries to evade detection.

BoletimSec
๐Ÿ‡จ๐Ÿ‡ณAug 11

Chinese Courts Hand Down 16-Year and 32-Year Sentences to Ransomware Operators

Two individuals involved in ransomware operations have received lengthy prison terms in China, with one sentenced to 16 years and the other to 32 years. The cases underscore Beijing's increasing focus on prosecuting ransomware-related crimes. The longer sentence reflects the scale and impact of the criminal activity attributed to the second defendant. Chinese authorities have publicly highlighted these outcomes as part of broader efforts against cyber extortion. The rulings send a clear deterrent message to ransomware actors operating within or targeting Chinese infrastructure.

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๐Ÿ‡ท๐Ÿ‡บAug 5

Telegram Removed from App Store After Extortionist Plants AI-Modified CSAM in Archived Message

Pavel Durov stated that an extortionist edited an old public group message by inserting AI-altered child sexual abuse material, allowing the post to evade detection by active chat participants while enabling a direct report to Apple. The tactic triggered automatic removal of Telegram and experimental Telegram X from the App Store in multiple countries including Russia, Turkey, and the United States on August 4. Apple restored the applications after Telegram deleted the prohibited content and blocked the responsible account, with the entire outage lasting approximately ninety minutes. During the incident, push notifications failed for some iOS users, while macOS and Android versions remained unaffected. Durov criticized Apple for suspending the app without prior contact and warned that the same mechanism could be used against any user-generated content platform. Telegram urged Apple to apply equal scrutiny to all incoming reports rather than acting on isolated complaints that bypass normal moderation filters.

AntiMalware
๐Ÿ‡ต๐Ÿ‡นJul 27

Cl0p Exploits Critical Windchill Vulnerability CVE-2026-12569 to Steal Industrial Designs

The Cl0p extortion group is actively targeting internet-exposed PTC Windchill and FlexPLM servers to exfiltrate engineering projects, technical specifications, and other sensitive data. The campaign focuses on organizations in the industrial, automotive, aerospace, defense, and retail sectors. Attackers leverage the critical remote code execution vulnerability CVE-2026-12569, which stems from unsafe deserialization and carries a CVSS score of 9.8, allowing unauthenticated exploitation over the network. The intrusion chain also combines a WSDL endpoint information disclosure in FlexPLM with a login mechanism weakness in Windchill to gain initial access and execute commands without valid credentials. After compromise, operators deploy JSP web shells to maintain persistence, explore files, and prepare data for exfiltration. Affected systems often contain unreleased product designs, engineering drawings, and strategic manufacturing documents. The activity began in early June 2026, with extortion emails sent to hundreds of employees starting July 20 to increase internal pressure ahead of potential data leaks.

BoletimSec
๐Ÿ‡ต๐Ÿ‡นJul 24

Chaos Ransomware Group Uses msaRAT Trojan to Hide C2 Traffic Through Invisible Chrome and Edge Browsers

The Chaos ransomware group has adopted a new Rust-based trojan called msaRAT to conceal its command-and-control communications inside legitimate browser sessions. The malware launches Chrome or Edge in invisible mode and controls it via the Chrome DevTools Protocol, keeping all outbound traffic restricted to localhost. It then injects JavaScript to negotiate a WebRTC connection through Cloudflare Workers before routing data over Twilio TURN servers, preventing the attackers' real infrastructure from appearing in network logs. Commands are executed through cmd.exe, and the implant includes queuing mechanisms that support reliable transfer of files, screenshots, and larger data volumes. In the analyzed incident, operators delivered the malware via an MSI installer disguised as a Windows update that loaded the msaRAT DLL directly into memory. The technique does not exploit any vulnerabilities in Chrome or Edge and is designed to blend malicious traffic with normal corporate browser activity.

BoletimSec
๐Ÿ‡ต๐Ÿ‡นJul 22

Qilin Ransomware Operators Exploit Palo Alto PAN-OS VPN Flaw CVE-2026-0257

Operators linked to the Qilin ransomware group have been actively exploiting an authentication bypass vulnerability in Palo Alto Networks PAN-OS to gain initial access to corporate networks. The attacks, observed in June 2026, targeted the GlobalProtect VPN service running on Palo Alto firewalls and were tracked under CVE-2026-0257. Attackers used specially crafted authentication cookies to establish unauthorized VPN sessions, after which they harvested credentials from Windows LSASS processes and Active Directory NTDS databases. Lateral movement relied heavily on PsExec and administrative shares, supplemented by tools such as AnyDesk, Ngrok, LogMeIn, and NetExec. Before deploying the ransomware binary stored as win.exe in C:\PerfLogs\, the threat actors disabled Microsoft Defender real-time protection and cleared event logs. The vulnerability affects PAN-OS versions 10.2, 11.1, 11.2, and 12.1 as well as certain Prisma Access editions, while Panorama and Cloud NGFW remain unaffected.

BoletimSec
๐Ÿ‡ต๐Ÿ‡นJul 20

Ransomware Attack Hits Coca-Cola Subsidiary Fairlife, Temporarily Halting US Production Systems

Fairlife, a company owned by Coca-Cola, temporarily suspended production operations in the United States after detecting unauthorized access to parts of its systems in a ransomware incident. The breach, publicly disclosed by Coca-Cola on July 16, 2026, affected environments directly linked to industrial production, prompting an immediate shutdown while investigations and recovery efforts continue. Fairlife manufactures milk, protein beverages, and other dairy products sold across the North American market, making the incident potentially disruptive to product availability, logistics, and internal processes. The company activated its incident response and business continuity protocols and engaged external cybersecurity specialists and consultants to assist with containment, investigation, and system restoration. No information has yet been released regarding data exfiltration, file encryption, or ransom demands, and the full scope of the attack remains under assessment. Coca-Cola has notified law enforcement authorities about the incident, while operations at Fairlife facilities in Canada were confirmed to be unaffected.

BoletimSec
๐Ÿ‡ท๐Ÿ‡บJul 14

Six Weeks of Inactivity and 37 Years of History Lost: Cyberattack Forces German Textile Firm ZEGO into Bankruptcy

A prolonged cyberattack that halted operations for nearly six weeks has driven the Bavarian textile company ZEGO Textilveredelungszentrum into insolvency proceedings, ending 37 years of business activity. The firm, which specialized in fabric finishing and processing for the automotive sector, workwear producers, and technical textiles, was unable to recover from the severe financial strain caused by the production standstill that began after the incident on 29 March 2026. Managing Director Johannes Zenglein described the decision to seek creditor protection as one of the most difficult in the companyโ€™s history, noting that the financial burden had become insurmountable. Although the company has not disclosed whether ransomware was involved or whether attackers accessed customer or employee data, it confirmed that the operational shutdown alone pushed the business to the brink of collapse. ZEGO now hopes to continue limited production while insolvency administrators explore restructuring options to preserve jobs and relationships with clients and suppliers. The case echoes other high-profile incidents, such as the bankruptcy of British logistics company KNP Logistics after 158 years of operation following a ransomware attack that encrypted its systems.

securitylab_n