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attack_type:ransomware × criticity:high × limpar

Resultados

15 casos · pág. 1/1

securelist.com · high

Toy Ghouls deploys custom backdoors using HiveMQ MQTT and Element/Matrix as C2 against Russian organizations

Toy Ghouls (aka Bearlyfy, Laboo.boo, Feral Wolf), a financially motivated group targeting Russian organizations since 2025, was observed in early July 2026 using a custom backdoor for the first time. Kaspersky GERT identified two versions, mqtt-bird-agent 0.1.0 (C2 over the public HiveMQ MQTT broker) and matrix-bird-agent 0.1.0 (C2 over a…

itsecurityguru.org · high

Forescout exposes ROMULUS malware delivery panel behind ClickFix campaigns and links Lorem Ipsum and Axolotl loaders to Vice Society tradecraft

Forescout's Vedere Labs has documented ROMULUS, a previously unknown malware delivery platform used in ClickFix campaigns, and new delivery techniques for loaders tied to Vice Society ransomware activity. The server hosting the ROMULUS panel was found during an incident investigation, and six IP addresses exposed the same authentication i…

gbhackers.com · high

Gentlemen ransomware uses vulnerable Lenovo and Safetica drivers (BYOVD) to kill security software before encryption

Acronis Threat Research Unit found that the Gentlemen ransomware operation is using the BYOVD (bring your own vulnerable driver) technique with legitimate Lenovo and Safetica kernel drivers to terminate endpoint security software before encrypting files. Two custom dropper samples were recovered from a recent incident. They install the dr…

hipaajournal.com · high

July 2026 US healthcare breaches: 77 incidents, 33.5M people exposed, led by ShinyHunters' DentaQuest attack

In July 2026, 77 large healthcare data breaches (500+ individuals) were reported to the HHS Office for Civil Rights (OCR), a 10% month-over-month increase and the third consecutive monthly rise. At least 33,485,970 individuals were affected, up 642% from June and 154% above the 12-month average. January-July 2026 totals 67.4 million affec…

hipaajournal.com · high

Central Ohio Primary Care Physicians breach exposes 1.4 million patients' data after vishing attack; Chaos ransomware listing

Central Ohio Primary Care Physicians, a large physician-owned primary care group based in Westerville, Ohio, with more than 80 locations, disclosed a breach affecting about 1.4 million current and former patients. In August 2026, an unauthorized third party used a voice phishing (vishing) attack to obtain credentials that gave access to i…

flashpoint.io · high

Flashpoint Middle East brief: Houthi strikes on Riyadh airport, Hormuz shipping attacks, IRGC Fairford attribution, Iran-linked cyber activity

Flashpoint's weekly Middle East brief for October 9-15 describes sustained kinetic escalation alongside cyber and information operations. Ansarallah (Houthis) ran a multi-day missile, drone and cruise-missile campaign against King Khalid International Airport in Riyadh. It killed at least 14 people and closed the airport through at least …

cisa.gov · high

CISA and FBI #StopRansomware advisory on Gunra, a Conti-derived RaaS exploiting Fortinet and VPN flaws for double extortion

The FBI, CISA, DC3, NSA, USSS and the Republic of Korea's KNPA issued joint advisory AA26-222A on Gunra ransomware. Gunra appeared in April 2025 as a double-extortion variant derived from the leaked Conti source code. It launched a structured RaaS affiliate program in January 2026, also operating under the alias Golden Community, and recr…

f5.com · exploit público high

F5 Labs: SparkRAT C2 scanning from DigitalOcean and April 2025 CVE exploitation trends, including Fortinet SSL-VPN and SAP NetWeaver

F5 Labs, using Efflux sensor telemetry, reports on the most exploited CVEs of April 2025 and on internet-wide scanning for SparkRAT command-and-control servers. A single actor, using three IPs in DigitalOcean ASN 14061, sent identical HTTP POST requests to the SparkRAT in-place update endpoint, each IP scanning for about 13 hours and reac…

sentinelone.com · high

BYOVD EDR-killer tooling industrialized into a shared supply chain used by rival ransomware crews and RaaS affiliates

This SentinelOne analysis argues that EDR killing, mostly through bring your own vulnerable driver (BYOVD), has grown from one-off tooling into a maintained, shared and sold capability. Ransomware actors disabled security tools in about 48% of 2024 intrusions, and BYOVD is the fastest-growing method within that figure. The article traces …

securelist.com · high

PAYLOAD extortion group abuses domain-root GPO to disrupt a Middle East manufacturer without deploying a Windows encryptor

In April 2026, Kaspersky GERT responded to an incident at a Middle East manufacturing organization where the actor gained domain admin-equivalent control of Active Directory. The actor created and linked a malicious GPO named PAYLOAD at the domain root. It pushed ransom notes, a wallpaper and lock screen, a logon banner and a local admini…

theregister.com · high

Attackers increasingly target building automation and OT systems; French grocery refrigeration hack causes spoilage and fires

A still-unknown actor hacked thousands of remote-controlled refrigeration systems across hundreds of French grocery stores, spiking temperatures, spoiling food and sparking fires. The incident fits a broader trend of extortionists and other attackers going after physical systems to maximise real-world pressure on victims. Earlier examples…

gbhackers.com · high

Zscaler ThreatLabz: Ransomware Groups Use Generative AI for Phishing, Data Triage and Fast Exfiltration, Including Payouts King

Zscaler ThreatLabz's 2026 Ransomware Report describes ransomware operators using generative AI to sharpen phishing, speed up reconnaissance and pick out the most sensitive corporate data to steal. The report records 896.2 TB exfiltrated by the top 10 ransomware groups between April 2025 and March 2026. The article cites a 275.8% annual in…

securelist.com · high

Kaspersky maps warehouse attack paths: radio, scanner and printer entry points, and WMS compromise

Kaspersky Security Services published a threat-model paper on how attackers can compromise modern logistics warehouses. It follows an order through eight fulfillment stages: unloading, receiving, putaway, storage, picking, sorting, packing and shipment. The paper identifies the warehouse management system (WMS) as the highest-value target…

sentinelone.com · high

Weekly CTI roundup: Bitget $387M DPRK-linked heist, Pentagon DMDC breach of 3M, KillSec takedown, ex-military cybercrime sentences

This SentinelOne weekly roundup covers law enforcement wins and two major breaches. A federal court sentenced former U.S. Army soldier Cameron John Wagenius to 70 months for attacks on technology and telecom firms, and former U.S. Air Force members Chijioke Timothy Odimegwu and Harafat Mogaji received a combined 189 months for business em…

sentinelone.com · high

Weekly CTI roundup: Ryuk access broker sentenced, TraderTraitor FLATROOF/ROOFDECK macOS backdoors, AI-agent skimming of 600K cards

This SentinelOne weekly roundup (Week 39, 2026) covers one law enforcement success and two active threat campaigns. A US court sentenced Armenian national Karen Serobovich Vardanyan ("Maneeken"/"Karl Lagerfeld"), an initial access specialist for Ryuk ransomware, to two years in prison and over $1.2 million in restitution. SentinelLABS ide…