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A new information stealer malware called MetaStealer has set its sights on Apple macOS, making the latest in a growing list of stealer families focused on the operating system after MacStealer , Pureland , Atomic Stealer , and  Realst . "Threat actors are proactively targeting macOS businesses by posing as fake clients in order to socially engineer victims into launching malicious payloads," SentinelOne security researcher Phil Stokes  said  in a Monday analysis. In these attacks, MetaStealer is distributed in the form of rogue application bundles in the disk image format (DMG), with targets approached through threat actors posing as prospective design clients in order to share a password-protected ZIP archive containing the DMG file. Other instances have involved the malware masquerading as Adobe files or installers for Adobe Photoshop. Evidence gathered so far shows that MetaStealer artifacts began appearing in the wild in March 2023. The most recent sample was upl...

Google on Monday rolled out out-of-band security patches to address a critical security flaw in its Chrome web browser that it said has been exploited in the wild. Tracked as  CVE-2023-4863 , the issue has been described as a case of  heap buffer overflow  that resides in the  WebP image format  that could result in arbitrary code execution or a crash. Apple Security Engineering and Architecture (SEAR) and the Citizen Lab at the University of Toronto's Munk School have been credited with discovering and reporting the flaw on September 6, 2023. The tech giant has yet to disclose additional details about the nature of the attacks, but noted that it's "aware that an exploit for CVE-2023-4863 exists in the wild." With the latest fix, Google has addressed a total of four zero-day vulnerabilities in Chrome since the start of the year - CVE-2023-2033  (CVSS score: 8.8) - Type Confusion in V8 CVE-2023-2136  (CVSS score: 9.6) - Integer overflow in Skia...

A new phishing attack is leveraging Facebook Messenger to propagate messages with malicious attachments from a "swarm of fake and hijacked personal accounts" with the ultimate goal of taking over the targets' Business accounts. "Originating yet again from a Vietnamese-based group, this campaign uses a tiny compressed file attachment that packs a powerful Python-based stealer dropped in a multi-stage process full of simple yet effective obfuscation methods," Guardio Labs researcher Oleg Zaytsev  said  in an analysis published over the weekend. In these attacks, dubbed MrTonyScam, potential victims are sent messages that entice them into clicking on the RAR and ZIP archive attachments, leading to the deployment of a dropper that fetches the next-stage from a GitHub or GitLab repository. This payload is another archive file that contains a CMD file, which, in turn, harbors an obfuscated Python-based stealer to exfiltrate all cookies and login credentials from d...

The Iranian threat actor known as  Charming Kitten  has been linked to a new wave of attacks targeting different entities in Brazil, Israel, and the U.A.E. using a previously undocumented backdoor named Sponsor. Slovak cybersecurity firm is tracking the cluster under the name  Ballistic Bobcat . Victimology patterns suggest that the group primarily singles out education, government, and healthcare organizations, as well as human rights activists and journalists. At least 34 victims of Sponsor have been detected to date, with the earliest instances of deployment dating back to September 2021. "The Sponsor backdoor uses configuration files stored on disk," ESET researcher Adam Burgher  said  in a new report published today. "These files are discreetly deployed by batch files and deliberately designed to appear innocuous, thereby attempting to evade detection by scanning engines." The campaign, dubbed Sponsoring Access, involves obtaining initial access by op...

With the growing reliance on web applications and digital platforms, the use of application programming interfaces (APIs) has become increasingly popular. If you aren't familiar with the term, APIs allow applications to communicate with each other and they play a vital role in modern software development. However, the rise of API use has also led to an increase in the number of API breaches. These breaches occur when unauthorized individuals or systems gain access to an API and the data it contains. And as victims can attest, breaches can have devastating consequences for both businesses and individuals. One of the primary concerns with API breaches is the exposure of sensitive data. APIs often contain or provide access to personal or financial information, and if this data falls into the wrong hands, it can be used for fraudulent activities or identity theft. API breaches can also lead to severe reputational damage for businesses. Customers and stakeholders expect their informatio...

Google has officially begun its rollout of Privacy Sandbox in the Chrome web browser to a majority of its users, nearly four months after it  announced the plans . "We believe it is vital to both improve privacy and preserve access to information, whether it's news, a how-to-guide, or a fun video," Anthony Chavez, vice president of Privacy Sandbox initiatives at Google,  said . "Without viable privacy-preserving alternatives to third-party cookies, such as the Privacy Sandbox, we risk reducing access to information for all users, and incentivizing invasive tactics such as fingerprinting." To that end, the search giant is initially leaving nearly three percent of users unaffected by the change in order to conduct sufficient tests. General availability is expected to encompass all users in the coming months. Privacy Sandbox is Google's  umbrella term  for a set of technologies that aim to eliminate third-party tracking cookies on the web and replace them...

A new cyber attack campaign is leveraging the PowerShell script associated with a legitimate red teaming tool to plunder  NTLMv2 hashes  from compromised Windows systems primarily located in Australia, Poland, and Belgium. The activity has been codenamed Steal-It by Zscaler ThreatLabz. "In this campaign, the threat actors steal and exfiltrate NTLMv2 hashes using customized versions of Nishang's  Start-CaptureServer PowerShell script , executing various system commands, and exfiltrating the retrieved data via Mockbin APIs," security researchers Niraj Shivtarkar and Avinash Kumar said. Nishang  is a framework and collection of PowerShell scripts and payloads for offensive security, penetration testing, and red teaming. The attacks leverage as many as five different infection chains, although they all leverage phishing emails containing ZIP archives as the starting point to infiltrate specific targets using geofencing techniques - NTLMv2 hash stealing infection...

A new malware loader called HijackLoader is gaining traction among the cybercriminal community to deliver various payloads such as  DanaBot ,  SystemBC , and  RedLine Stealer . "Even though HijackLoader does not contain advanced features, it is capable of using a variety of modules for code injection and execution since it uses a modular architecture, a feature that most loaders do not have," Zscaler ThreatLabz researcher Nikolaos Pantazopoulos  said . First observed by the company in July 2023, the malware employs a number of techniques to fly under the radar. This involves using syscalls to evade monitoring from security solutions, monitoring processes associated with security software based on an embedded blocklist, and putting off code execution by as much as 40 seconds at different stages. The exact initial access vector used to infiltrate targets is currently not known. The anti-analysis aspects notwithstanding, the loader packs in a main instrumentation mo...

Spyware masquerading as modified versions of Telegram have been spotted in the Google Play Store that's designed to harvest sensitive information from compromised Android devices. According to Kaspersky security researcher Igor Golovin, the apps come with  nefarious features  to capture and exfiltrate names, user IDs, contacts, phone numbers, and chat messages to an actor-controlled server. The activity has been codenamed  Evil Telegram  by the Russian cybersecurity company. The apps have been collectively downloaded millions of times before they were taken down by Google. Their details are as follows - 電報,紙飛機-TG繁體中文版 or 電報,小飛機-TG繁體中文版 (org.telegram.messenger.wab) - 10 million+ downloads TG繁體中文版-電報,紙飛機 (org.telegram.messenger.wab) - 50,000+ downloads 电报,纸飞机-TG简体中文版 (org.telegram.messenger.wob) - 50,000+ downloads 电报,纸飞机-TG简体中文版 (org.tgcn.messenger.wob) - 10,000+ downloads ئۇيغۇر تىلى TG - تېلېگرامما (org.telegram.messenger.wcb) - 100+ downloads The last a...