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The Iranian nation-state actor known as  MuddyWater  has been linked to a new spear-phishing campaign targeting two Israeli entities to ultimately deploy a legitimate remote administration tool from N-able called  Advanced Monitoring Agent . Cybersecurity firm Deep Instinct, which disclosed details of the attacks,  said  the campaign "exhibits updated TTPs to previously reported MuddyWater activity," which has, in the past, used similar attack chains to distribute other remote access tools like  ScreenConnect, RemoteUtilities, Syncro , and  SimpleHelp . While the latest development marks the first time MuddyWater has been observed using N-able's remote monitoring software, it also underscores the fact that the largely unchanged modus operandi continues to yield some level of success for the threat actor. The findings have also been separately confirmed by cybersecurity company Group-IB in a post shared on X (formerly Twitter). The state-sponsore...

As many as 34 unique vulnerable Windows Driver Model ( WDM ) and Windows Driver Frameworks ( WDF ) drivers could be exploited by non-privileged threat actors to gain full control of the devices and execute arbitrary code on the underlying systems. "By exploiting the drivers, an attacker without privilege may erase/alter firmware, and/or elevate [operating system] privileges," Takahiro Haruyama, a senior threat researcher at VMware Carbon Black,  said . The  research  expands on previous studies, such as  ScrewedDrivers  and  POPKORN  that utilized  symbolic execution  for automating the discovery of vulnerable drivers. It specifically focuses on drivers that contain firmware access through port I/O and memory-mapped I/O. The names of some of the vulnerable drivers include AODDriver.sys, ComputerZ.sys, dellbios.sys, GEDevDrv.sys, GtcKmdfBs.sys, IoAccess.sys, kerneld.amd64, ngiodriver.sys, nvoclock.sys, PDFWKRNL.sys ( CVE-2023-20598 ), Rad...

The Forum of Incident Response and Security Teams (FIRST) has officially announced  CVSS v4.0 , the next generation of the Common Vulnerability Scoring System standard, more than eight years after the release of CVSS v3.0 in June 2015. "This latest version of  CVSS 4.0  seeks to provide the highest fidelity of vulnerability assessment for both industry and the public," FIRST  said  in a statement. CVSS essentially provides a way to capture the principal technical characteristics of a security vulnerability and produce a numerical score denoting its severity. The score can be translated into various levels, such as low, medium, high, and critical, to help organizations prioritize their vulnerability management processes. One of the core updates to CVSS v3.1,  released  in July 2019, was to  emphasize and clarify  that "CVSS is designed to measure the severity of a vulnerability and should not be used alone to assess risk." CVSS v3.1 has ...

Cybersecurity researchers are warning of suspected exploitation of a recently disclosed critical security flaw in the Apache ActiveMQ open-source message broker service that could result in remote code execution. "In both instances, the adversary attempted to deploy ransomware binaries on target systems in an effort to ransom the victim organizations," cybersecurity firm Rapid7  disclosed  in a report published Wednesday. "Based on the ransom note and available evidence, we attribute the activity to the HelloKitty ransomware family, whose source code was leaked on a forum in early October." The intrusions are said to involve the exploitation of  CVE-2023-46604 , a remote code execution vulnerability in Apache ActiveMQ that allows a threat actor to run arbitrary shell commands. It's worth noting that the  vulnerability  carries a CVSS score of 10.0, indicating maximum severity. It has been  addressed  in ActiveMQ versions 5.15.16, 5.16.7, 5.17.6, ...

A threat actor known as  Prolific Puma  has been maintaining a low profile and operating an underground link shortening service that's offered to other threat actors for at least over the past four years. Prolific Puma creates "domain names with an  RDGA  [registered domain generation algorithm] and use these domains to provide a link shortening service to other malicious actors, helping them evade detection while they distribute phishing, scams, and malware," Infoblox  said  in a new analysis pieced together from Domain Name System ( DNS)  analytics. With malicious actors known to use link shorteners for phishing attacks, the adversary plays an important role in the cybercrime supply chain, registering between 35,000 to 75,000 unique domain names since April 2022. Prolific Puma is also a  DNS threat actor  for leveraging DNS infrastructure for nefarious purposes. A notable aspect of the threat actor's operations is the use of an American...

The browser has become the main work interface in modern enterprises. It's where employees create and interact with data, and how they access organizational and external SaaS and web apps. As a result, the browser is extensively targeted by adversaries. They seek to steal the data it stores and use it for malicious access to organizational SaaS apps or the hosting machine. Additionally, unintentional data leakage via the browser has become a critical concern for organizations as well. However, traditional endpoint, network, and data protection solutions fail to protect this critical resource against advanced web-borne attacks that continuously rise in sophistication and volume. This gap leaves organizations exposed to phishing attacks, malicious browser extensions, data exposure, and data loss.  This is the challenge  LayerX  is attempting to solve. LayerX has developed a secure enterprise browser extension that can be mounted on any browser. The LayerX extension deli...

A threat actor affiliated with Iran's Ministry of Intelligence and Security (MOIS) has been observed waging a sophisticated cyber espionage campaign targeting financial, government, military, and telecommunications sectors in the Middle East for at least a year. Israeli cybersecurity firm Check Point, which discovered the campaign alongside Sygnia, is tracking the actor under the name  Scarred Manticore , which is said to closely overlap with an emerging cluster dubbed  Storm-0861 , one of the four Iranian groups linked to destructive attacks on the Albanian government last year. Victims of the operation span various countries such as Saudi Arabia, the United Arab Emirates, Jordan, Kuwait, Oman, Iraq, and Israel. Scarred Manticore also exhibits some degree of overlap with  OilRig , another Iranian nation-state crew that was recently attributed to an attack on an unnamed Middle East government between February and September 2023 as part of an eight-month-long campaign....