All news with #ransomware tag

🛡️ Google is adding an AI-powered defense in Google Workspace that monitors files synced by the Drive for desktop app on Windows and macOS, detecting mass file corruption characteristic of ransomware. Trained on millions of ransomware samples and using intelligence from VirusTotal, the model halts cloud sync to stop spread and enables simple file restoration. The feature rolls out now at no extra cost for most commercial plans and complements built-in Gmail and Chrome protections.

🔐 Unit 42 responded to a significant BlackSuit ransomware campaign after attackers obtained VPN credentials via a vishing call and immediately escalated privileges. The adversary executed DCSync, moved laterally with RDP/SMB using tools like Advanced IP Scanner and SMBExec, established persistence with AnyDesk and a custom RAT, and exfiltrated over 400 GB before deploying BlackSuit across ~60 ESXi hosts. Unit 42 expanded Cortex XDR visibility from 250 to over 17,000 endpoints and used Cortex XSOAR to automate containment while delivering prioritized remediation guidance.

⚡This weekly recap covers high-impact incidents and emerging trends shaping enterprise risk. Significant exploitation of an Oracle E-Business Suite zero-day (CVE-2025-61882) and linked payloads reportedly affected dozens of organizations, while a GoAnywhere MFT flaw (CVE-2025-10035) enabled multi-stage intrusions by Storm-1175. Other highlights include a WhatsApp worm, npm-based phishing chains, an emerging ransomware cartel, AI abuse, and a prioritized list of critical CVEs.

🔐 Ransomware intrusions increasingly begin with compromised identities: recent analyses attribute roughly three quarters of incidents to stolen or misused credentials. Defenses must shift from infrastructure-centric controls to identity-first models like Zero Trust, combining RBAC, MFA and context-aware authentication. Adaptive, risk-based access and passwordless methods reduce friction while improving detection and auditability. Regulatory regimes such as NIS2 and DORA further mandate auditable access controls.

🔒 Researchers report that the open-source DFIR tool Velociraptor was abused by threat actors to maintain stealthy persistent access while deploying multiple ransomware families, including Warlock, LockBit and Babuk. Cisco Talos observed the activity in August 2025 and attributed the multi-vector operation to a China-linked cluster tracked as Storm-2603. Attackers exploited a vulnerable agent (v0.73.4.0) via CVE-2025-6264 to escalate privileges and persist; defenders are urged to verify deployments and update to v0.73.5 or later.

🔒 Fortra disclosed its investigation into CVE-2025-10035, a deserialization vulnerability in the GoAnywhere License Servlet that has been exploited since September 11, 2025. The vendor issued a hotfix within 24 hours and published patched builds (7.6.3 and 7.8.4) on September 15, saying the risk is limited to admin consoles exposed to the public internet. Microsoft attributes observed exploitation to threat actor Storm-1175, which deployed Medusa ransomware; Fortra recommends restricting internet access to admin consoles, enabling monitoring, and keeping software up to date.

⚠️Researchers have observed threat actors leveraging the open-source DFIR tool Velociraptor to maintain persistent remote access and deploy ransomware families including LockBit and Babuk. Cisco Talos links the campaigns to a China-based group tracked as Storm-2603 and notes use of an outdated Velociraptor build vulnerable to CVE-2025-6264. Attackers synchronized local admin accounts to Entra ID, accessed vSphere consoles, disabled Defender via AD GPOs, and used fileless PowerShell encryptors with per-run AES keys and staged exfiltration prior to encryption.

🚨 Three major ransomware-as-a-service operators — LockBit, DragonForce, and Qilin — announced a coalition in early September aimed at coordinating attacks and stabilizing market conditions after recent law enforcement disruptions. The groups signaled intentions to reduce intra-group conflicts, share resources, and protect affiliate revenue, and LockBit explicitly authorized targeting certain critical infrastructure sectors. ReliaQuest researchers reviewed forum posts and communications but have not yet observed joint operations or a combined leak site.

🔍 In September 2025, global cyber-attack volumes eased modestly, with organizations facing an average of 1,900 attacks per organization per week — a 4% decline from August but a 1% increase year-over-year. Beneath this apparent stabilization, ransomware activity jumped sharply (up 46%), while emerging GenAI-related data risks expanded rapidly, changing attacker tactics. The report warns that evolving techniques and heightened data exposure are creating a more complex and consequential threat environment for organizations worldwide.

🔐 Cisco Talos confirmed ransomware operators abused Velociraptor, an open-source DFIR endpoint tool, to gain arbitrary command execution in August 2025 by deploying an outdated agent vulnerable to CVE-2025-6264. Talos links the activity with moderate confidence to Storm-2603 based on overlapping tooling and TTPs. Operators used the tool to stage lateral movement, deploy fileless PowerShell encryptors, and deliver multiple ransomware families, severely disrupting VMware ESXi and Windows servers.

🖱️ A recent episode of the Smashing Security podcast examines how commonplace devices and online behaviour can create unexpected security risks. Hosts discuss academic work that turns a standard computer mouse into an acoustic eavesdropping sensor, showing how a malicious webpage could exploit peripheral hardware. They also consider a ransomware crew’s reputation problems, and round out the episode with lighter items such as a quirky baked potato hack and a literary detour to Paraguay.

🔒 Two 17-year-old suspects were arrested in Bishop's Stortford on suspicion of blackmail and computer misuse after an investigation into the doxing of children following a ransomware attack on a chain of London nurseries. The incident aligns with a September 25 breach affecting Kido nurseries, where a group known as Radiant Group claimed to have stolen sensitive data and photos of over 1,000 children. Attackers posted some images and addresses on a dark web leak site and later removed the files on October 2 after failing to extort the company and making threatening calls to parents. Nursery software provider Famly said its infrastructure was not breached, while UK authorities described the case as deeply distressing and said investigations continue.

⚠️ Chaos-C++ is a resurfaced C++ ransomware strain identified in 2025 that combines fast AES encryption, deliberate deletion of very large files, and a clipboard-hijacking capability to steal cryptocurrency payments. It employs a stealthy downloader that masquerades as a system optimizer, uses Windows CryptoAPI where available and a weaker XOR fallback otherwise, and appends a .chaos extension to affected files. Victims also see destructive post-infection commands that remove shadow copies and hinder recovery, and ForsGuard detections are available for protection.

🔒 A Russian-linked ransomware group, Qilin, has claimed responsibility for a September 2, 2025 attack that disrupted Mecklenburg County Public Schools and said it exfiltrated 305 GB of data, including financial records, grant documents, budgets and children’s medical files. The attack forced teachers offline for about a week while internet systems were restored. Superintendent Scott Worner said the district does not currently intend to pay the ransom and is still assessing the scope, urging other districts to review cyber-insurance and preparedness.

🔒 Ransomware now inflicts costs far beyond ransom payments, driving operational downtime, reputational damage, and regulatory exposure that directly erode the bottom line. The 2025 Unit 42 report shows median initial extortion demands rose to $1.25M and commonly equate to about 2% of perceived annual revenue. While roughly 48% of victims paid in 2024, Unit 42 negotiation reduced median paid demands to about 0.6% of PAR, yet attackers’ disruptive tactics increasingly amplify recovery costs. Strengthening backups, segmentation, and an incremental zero trust posture are key to limiting impact and shortening recovery timelines.

🔒 Discord has disclosed a data breach after a third-party customer support provider was compromised, allowing a ransomware actor to access limited customer information. Potentially exposed data includes names, Discord usernames, contact details, last four digits of payment cards, IP addresses, messages with support agents and a small number of government ID images submitted for age appeals. Discord says no passwords, full card numbers or CVVs were accessed and is contacting affected users and authorities.

⚠️ Microsoft warns that a critical deserialization vulnerability, CVE-2025-10035, in Fortra's GoAnywhere MFT License Servlet Admin Console is being actively exploited in ransomware campaigns. The flaw (CVSS 10.0) enables attackers to bypass signature verification and deserialize attacker-controlled objects, potentially resulting in command injection and remote code execution on internet-exposed instances. Customers are urged to apply Fortra's patch, harden perimeter controls and run endpoint defenses in block mode to detect and stop post-breach activity.

🛡️ New variants of the XWorm backdoor (6.0, 6.4, 6.5) are being distributed via phishing campaigns after the original author, XCoder, abandoned the project. Multiple operators have adopted these builds, which now support more than 35 plugins enabling data theft, remote control, and a ransomware module that encrypts user files and drops HTML ransom notes. Trellix observed diverse droppers and recommends layered defenses including EDR, email/web protections, and network monitoring.

🔒 German SMEs face a sharp rise in ransomware and data-exfiltration incidents, with leak-site publications more than quadrupling from 2021 to 2024. Authorities report that 80% of analyzed ransomware incidents targeted small and medium-sized enterprises, often using double extortion. Attackers favor targeted phishing—executives receive on average 57 such attempts yearly—and many firms lack adequate defenses amid staffing shortages and overly complex security stacks.

🍺 A ransomware attack has forced Asahi Group Holdings to suspend production at nearly all of its 30 domestic breweries after ordering, delivery and call‑centre systems were disabled. The disruption has prompted the postponement of 12 new product launches and suspension of multiple beverage lines, with retailers warning that popular Asahi Super Dry could run out in days. Asahi reports no evidence so far of personal data leakage while investigations and recovery continue.