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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....

State-sponsored threat actors from the Democratic People's Republic of Korea (DPRK) have been found targeting blockchain engineers of an unnamed crypto exchange platform via Discord with a novel macOS malware dubbed  KANDYKORN . Elastic Security Labs said the activity, traced back to April 2023, exhibits overlaps with the infamous adversarial collective  Lazarus Group , citing an analysis of the network infrastructure and techniques used. "Threat actors lured blockchain engineers with a Python application to gain initial access to the environment," security researchers Ricardo Ungureanu, Seth Goodwin, and Andrew Pease  said  in a report published today. "This intrusion involved multiple complex stages that each employed deliberate defense evasion techniques." This is not the first time the Lazarus Group has leveraged macOS malware in its attacks. Earlier this year, the threat actor was observed distributing a backdoored PDF application that culminated in t...

The Russia-linked hacking crew known as Turla has been observed using an updated version of a known second-stage backdoor referred to as Kazuar. The new findings come from Palo Alto Networks Unit 42, which is tracking the adversary under its constellation-themed moniker  Pensive Ursa . "As the code of the upgraded revision of Kazuar reveals, the authors put special emphasis on Kazuar's ability to operate in stealth, evade detection and thwart analysis efforts," security researchers Daniel Frank and Tom Fakterman  said  in a technical report. "They do so using a variety of advanced anti-analysis techniques and by protecting the malware code with effective encryption and obfuscation practices." Pensive Ursa, active since at least 2004, is attributed to the Russian Federal Security Service (FSB). Earlier this July, the Computer Emergency Response Team of Ukraine (CERT-UA)  implicated  the threat group to attacks targeting the defense sector in Ukraine and East...

F5 is warning of active abuse of a critical security flaw in BIG-IP less than a week after its public disclosure, resulting in the execution of arbitrary system commands as part of an exploit chain. Tracked as  CVE-2023-46747  (CVSS score: 9.8), the  vulnerability  allows an unauthenticated attacker with network access to the BIG-IP system through the management port to achieve code execution. A proof-of-concept (PoC)  exploit  has since been made  available  by ProjectDiscovery. It impacts the following versions of the software - 17.1.0 (Fixed in 17.1.0.3 + Hotfix-BIGIP-17.1.0.3.0.75.4-ENG) 16.1.0 - 16.1.4 (Fixed in 16.1.4.1 + Hotfix-BIGIP-16.1.4.1.0.50.5-ENG) 15.1.0 - 15.1.10 (Fixed in 15.1.10.2 + Hotfix-BIGIP-15.1.10.2.0.44.2-ENG) 14.1.0 - 14.1.5 (Fixed in 14.1.5.6 + Hotfix-BIGIP-14.1.5.6.0.10.6-ENG) 13.1.0 - 13.1.5 (Fixed in 13.1.5.1 + Hotfix-BIGIP-13.1.5.1.0.20.2-ENG) Now the company is  alerting  that it has "observed th...

The threat actor known as  Arid Viper  (aka APT-C-23, Desert Falcon, or TAG-63) has been attributed as behind an Android spyware campaign targeting Arabic-speaking users with a counterfeit dating app designed to harvest data from infected handsets. "Arid Viper's Android malware has a number of features that enable the operators to surreptitiously collect sensitive information from victims' devices and deploy additional executables," Cisco Talos  said  in a Tuesday report. Active since at least 2017, Arid Viper is a cyber espionage that's aligned with  Hamas , an Islamist militant movement that governs the Gaza Strip. The cybersecurity firm said there is no evidence connecting the campaign to the  ongoing   Israel-Hamas war . The activity is believed to have commenced no earlier than April 2022. Interestingly, the mobile malware shares source code similarities with a non-malicious online dating application called Skipped, suggesting that the opera...