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Microsoft has shared details of a now-patched flaw in Apple macOS that could be abused by threat actors with root access to bypass security enforcements and perform arbitrary actions on affected devices. Specifically, the flaw – dubbed  Migraine  and tracked as CVE-2023-32369 – could be abused to get around a key security measure called System Integrity Protection ( SIP ), or "rootless," which limits the actions the root user can perform on protected files and folders. "The most straight-forward implication of a SIP bypass is that [...] an attacker can create files that are protected by SIP and therefore undeletable by ordinary means," Microsoft researchers Jonathan Bar Or, Michael Pearse, and Anurag Bohra  said . Even worse, it could be exploited to gain arbitrary kernel code execution and even access sensitive data by replacing databases that manage Transparency, Consent, and Control (TCC) policies. The bypass is made possible by leveraging a built-in macOS tool called  Migrat

A new stealthy information stealer malware called Bandit Stealer has caught the attention of cybersecurity researchers for its ability to target numerous web browsers and cryptocurrency wallets.  "It has the potential to expand to other platforms as Bandit Stealer was developed using the Go programming language, possibly allowing cross-platform compatibility," Trend Micro  said  in a Friday report. The malware is currently focused on targeting Windows by using a legitimate command-line tool called  runas.exe  that allows users to run programs as another user with different permissions. The goal is to escalate privileges and execute itself with administrative access, thereby effectively bypassing security measures to harvest wide swathes of data. That said, Microsoft's access control mitigations to prevent unauthorized execution of the tool means an attempt to run the malware binary as an administrator requires providing the necessary credentials. "By using the

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A stealthy China-based group managed to establish a persistent foothold into critical infrastructure organizations in the U.S. and Guam without being detected,  Microsoft  and  the "Five Eyes" nations  said on Wednesday. The tech giant's threat intelligence team is tracking the activity, which includes post-compromise credential access and network system discovery, under the name  Volt Typhoon . The state-sponsored actor is  geared  towards espionage and information gathering, with the cluster active since June 2021 and obscuring its intrusion footprint by taking advantage of tools already installed or built into infected machines. Some of the prominent sectors targeted include communications, manufacturing, utility, transportation, construction, maritime, government, information technology, and education. The company further assessed with moderate confidence that the campaign is "pursuing development of capabilities that could disrupt critical communications i

A financially motivated cyber actor has been observed abusing Microsoft Azure  Serial Console  on virtual machines (VMs) to install third-party remote management tools within compromised environments. Google-owned Mandiant attributed the activity to a threat group it tracks under the name  UNC3944 , which is also known as Roasted 0ktapus and Scattered Spider. "This method of attack was unique in that it avoided many of the traditional detection methods employed within Azure and provided the attacker with full administrative access to the VM," the threat intelligence firm  said . The emerging adversary, which first came to light late last year, is known to  leverage SIM swapping attacks  to breach telecommunications and business process outsourcing (BPO) companies since at least May 2022. Subsequently, Mandiant also  found  UNC3944 utilizing a loader named STONESTOP to install a malicious signed driver dubbed POORTRY that's designed to terminate processes associated

A new phishing-as-a-service (PhaaS or PaaS) platform named  Greatness  has been leveraged by cybercriminals to target business users of the Microsoft 365 cloud service since at least mid-2022, effectively lowering the bar to entry for phishing attacks. "Greatness, for now, is only focused on Microsoft 365 phishing pages, providing its affiliates with an attachment and link builder that creates highly convincing decoy and login pages," Cisco Talos researcher Tiago Pereira  said . "It contains features such as having the victim's email address pre-filled and displaying their appropriate company logo and background image, extracted from the target organization's real Microsoft 365 login page." Campaigns involving Greatness have mainly manufacturing, health care, and technology entities located in the U.S., the U.K., Australia, South Africa, and Canada, with a spike in activity detected in December 2022 and March 2023. Phishing kits like Greatness offer t

A previously undetected advanced persistent threat (APT) actor dubbed  Red Stinger  has been linked to attacks targeting Eastern Europe since 2020. "Military, transportation, and critical infrastructure were some of the entities being targeted, as well as some involved in the  September East Ukraine referendums ," Malwarebytes disclosed in a  report  published today. "Depending on the campaign, attackers managed to exfiltrate snapshots, USB drives, keyboard strokes, and microphone recordings." Red Stinger overlaps with a threat cluster Kaspersky revealed under the name  Bad Magic  last month as having targeted government, agriculture, and transportation organizations located in Donetsk, Lugansk, and Crimea last year. While there were indications that the APT group may have been active since at least September 2021, the latest findings from Malwarebytes push the group's origins back by nearly a year, with the first operation taking place in December 2020.

Cybersecurity researchers have shared details about a now-patched security flaw in Windows MSHTML platform that could be abused to bypass integrity protections on targeted machines. The vulnerability, tracked as  CVE-2023-29324  (CVSS score: 6.5), has been described as a security feature bypass. It was  addressed  by Microsoft as part of its Patch Tuesday updates for May 2023. Akamai security researcher Ben Barnea, who discovered and reported the bug, noted that all Windows versions are affected, but pointed out Microsoft, Exchange servers with the March update omit the vulnerable feature. "An unauthenticated attacker on the internet could use the vulnerability to coerce an Outlook client to connect to an attacker-controlled server," Barnea  said  in a report shared with The Hacker News. "This results in NTLM credentials theft. It is a zero-click vulnerability, meaning it can be triggered with no user interaction." It's also worth noting that CVE-2023-29

Microsoft has rolled out  Patch Tuesday updates  for May 2023 to address 38 security flaws, including two zero-day bugs that it said are being actively exploited in the wild. Trend Micro's Zero Day Initiative (ZDI)  said  the volume is the lowest since August 2021, although it pointed out that "this number is expected to rise in the coming months." Of the 38 vulnerabilities, six are rated Critical and 32 are rated Important in severity. Eight of the flaws have been tagged with "Exploitation More Likely" assessment by Microsoft. This is aside from  18 flaws  – including 11 bugs since the start of May – the Windows maker resolved in its Chromium-based Edge browser following the release of April Patch Tuesday updates. Topping the list is  CVE-2023-29336  (CVSS score: 7.8), a privilege escalation flaw in Win32k that has come under active exploitation. It's not immediately clear how widespread the attacks are. "An attacker who successfully exploited t

Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft disclosed over the weekend. The tech giant's threat intelligence team said it observed both Mango Sandstorm (Mercury) and Mint Sandstorm (Phosphorus) weaponizing CVE-2023-27350 in their operations to achieve initial access. "This activity shows Mint Sandstorm's continued ability to  rapidly incorporate [proof-of-concept] exploits  into their operations," Microsoft  said  in a series of tweets. On the other hand, CVE-2023-27350 exploitation activity associated with Mango Sandstorm is said to be on the lower end of the spectrum, with the state-sponsored group "using tools from prior intrusions to connect to their C2 infrastructure." It's worth noting that  Mango Sandstorm  is linked to Iran's Ministry of Intelligence and Security (MOIS) and  Mint Sandstorm  is associated with the Islamic

Three new security flaws have been disclosed in Microsoft Azure API Management service that could be abused by malicious actors to gain access to sensitive information or backend services. This includes two server-side request forgery (SSRF) flaws and one instance of unrestricted file upload functionality in the API Management developer portal, according to Israeli cloud security firm Ermetic. "By abusing the SSRF vulnerabilities, attackers could send requests from the service's CORS Proxy and the hosting proxy itself, access internal Azure assets, deny service and bypass web application firewalls," security researcher Liv Matan said in a report shared with The Hacker News. "With the file upload path traversal, attackers could upload malicious files to Azure's hosted internal workload." Azure API Management is a  multicloud management platform  that allows organizations to securely expose their APIs to external and internal customers and enable a wide

The North Korean threat actor known as  ScarCruft  started experimenting with oversized LNK files as a delivery route for RokRAT malware as early as July 2022, the same month Microsoft  began blocking macros  across Office documents by default. "RokRAT has not changed significantly over the years, but its deployment methods have evolved, now utilizing archives containing LNK files that initiate multi-stage infection chains," Check Point  said  in a new technical report. "This is another representation of a major trend in the threat landscape, where APTs and cybercriminals alike attempt to overcome the blocking of macros from untrusted sources." ScarCruft , also known by the names APT37, InkySquid, Nickel Foxcroft, Reaper, RedEyes, and Ricochet Chollima, is a threat group that almost exclusively targets South Korean individuals and entities as part of spear-phishing attacks designed to deliver an array of custom tools. The adversarial collective, unlike the  La

Google on Wednesday said it obtained a temporary court order in the U.S. to disrupt the distribution of a Windows-based information-stealing malware called  CryptBot  and "decelerate" its growth. The tech giant's Mike Trinh and Pierre-Marc Bureau  said  the efforts are part of steps it takes to "not only hold criminal operators of malware accountable, but also those who profit from its distribution." CryptBot is estimated to have infected over 670,000 computers in 2022 with the goal of stealing sensitive data such as authentication credentials, social media account logins, and cryptocurrency wallets from users of Google Chrome. The harvested data is then exfiltrated to the threat actors, who then sell the data to other attackers for use in data breach campaigns. CryptBot was  first discovered  in the wild in December 2019. The malware has been traditionally delivered via maliciously modified versions of legitimate and popular software packages such as Goog

Google's cloud division is following in the  footsteps of Microsoft  with the launch of  Security AI Workbench  that leverages generative AI models to gain better visibility into the threat landscape.  Powering the cybersecurity suite is Sec-PaLM, a specialized large language model ( LLM ) that's "fine-tuned for security use cases." The idea is to take advantage of the latest advances in AI to augment point-in-time incident analysis, threat detection, and analytics to counter and prevent new infections by delivering intelligence that's  trusted, relevant, and actionable . To that end, the Security AI Workbench spans a wide range of new AI-powered tools, including  VirusTotal Code Insight  and  Mandiant Breach Analytics for Chronicle , to analyze potentially malicious scripts and alert customers of active breaches in their environments. Users, like with Microsoft's GPT-4-based  Security Copilot , can "conversationally search, analyze, and investigate

The  Transparent Tribe  threat actor has been linked to a set of weaponized Microsoft Office documents in intrusions directed against the Indian education sector to deploy a continuously maintained piece of malware called Crimson RAT. While the suspected Pakistan-based threat group is known to target  military and government entities  in the country, the activities have since expanded to include the  education vertical . The hacking group, also called APT36, Operation C-Major, PROJECTM, and Mythic Leopard, has been active as far back as 2013. Educational institutions have been at the receiving end of the adversary's attacks since late 2021. "Crimson RAT is a  consistent   staple  in the group's  malware arsenal  the adversary uses in its campaigns," SentinelOne researcher Aleksandar Milenkoski  said  in a report shared with The Hacker News. The .NET malware has the functionality to exfiltrate files and system data to an actor-controlled server. It's also bui

It's the second Tuesday of the month, and Microsoft has released another set of security updates to fix  a total of 97 flaws  impacting its software, one of which has been actively exploited in ransomware attacks in the wild. Seven of the 97 bugs are rated Critical and 90 are rated Important in severity. Interestingly, 45 of the shortcomings are remote code execution flaws, followed by 20 elevation of privilege vulnerabilities. The updates also follow fixes for 26 vulnerabilities in its Edge browser that were released over the past month. The security flaw that's come under active exploitation is  CVE-2023-28252  (CVSS score: 7.8), a privilege escalation bug in the Windows Common Log File System (CLFS) Driver. "An attacker who successfully exploited this vulnerability could gain SYSTEM privileges," Microsoft said in an advisory, crediting researchers Boris Larin, Genwei Jiang, and Quan Jin for reporting the issue. CVE-2023-28252 is the fourth privilege escalation