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Cybersecurity researchers have uncovered a new evasive malware loader named SquidLoader that spreads via phishing campaigns targeting Chinese organizations. AT&T LevelBlue Labs, which first observed the malware in late April 2024, said it incorporates features that are designed to thwart static and dynamic analysis and ultimately evade detection. Attack chains leverage phishing emails that come with attachments that masquerade as Microsoft Word documents, but, in reality, are binaries that pave the way for the execution of the malware, which is then used to fetch second-stage shellcode payloads from a remote server, including Cobalt Strike. "These loaders feature heavy evasion and decoy mechanisms which help them remain undetected while also hindering analysis," security researcher Fernando Dominguez said . "The shellcode that is delivered is also loaded in the same loader process, likely to avoid writing the payload to disk and thus risk being detected." ...

Crypto exchange Kraken revealed that an unnamed security researcher exploited an "extremely critical" zero-day flaw in its platform to steal $3 million in digital assets and refused to return them. Details of the incident were shared by Kraken's Chief Security Officer, Nick Percoco, on X (formerly Twitter), stating it received a Bug Bounty program alert from the researcher about a bug that "allowed them to artificially inflate their balance on our platform" without sharing any other details Within minutes of receiving the alert, the company said it identified a security issue that essentially permitted an attacker to "initiate a deposit onto our platform and receive funds in their account without fully completing the deposit." While Kraken emphasized that no client assets were at risk due to the issue, it could have enabled a threat actor to print assets in their accounts. The problem was addressed within 47 minutes, it said. It also said the fl...

The China-nexus cyber espionage actor linked to the zero-day exploitation of security flaws in Fortinet , Ivanti , and VMware devices has been observed utilizing multiple persistence mechanisms in order to maintain unfettered access to compromised environments. "Persistence mechanisms encompassed network devices, hypervisors, and virtual machines, ensuring alternative channels remain available even if the primary layer is detected and eliminated," Mandiant researchers said in a new report. The threat actor in question is UNC3886 , which the Google-owned threat intelligence company branded as "sophisticated, cautious, and evasive." Attacks orchestrated by the adversary have leveraged zero-day flaws such as CVE-2022-41328 (Fortinet FortiOS), CVE-2022-22948 (VMware vCenter), and CVE-2023-20867 (VMware Tools) to perform various malicious actions, ranging from deploying backdoors to obtaining credentials for deeper access. It has also been observed exploiting ...

Are your tags really safe with Google Tag Manager? If you've been thinking that using GTM means that your tracking tags and pixels are safely managed , then it might be time to think again. In this article we look at how a big-ticket seller that does business on every continent came unstuck when it forgot that you can't afford to allow tags to go unmanaged or become misconfigured.  Read the full case study here . Google Tag Manager saves website owners time and money. Its visual interface lets them attach tracking tags to their sites and then modify them as needed without the need to call a developer every time. Such tags gather the marketing and analytics data that power growth, and GTM makes them easier to manage, but with strict rules around data privacy to consider, you can't trust it completely; it needs active oversight. The ticket seller A case in point that we recently became aware of involves a global company that sells tickets to live events. With global operations i...

Chinese-speaking users are the target of a never-before-seen threat activity cluster codenamed Void Arachne that employs malicious Windows Installer (MSI) files for virtual private networks (VPNs) to deliver a command-and-control (C&C) framework called Winos 4.0. "The campaign also promotes compromised MSI files embedded with nudifiers and deepfake pornography-generating software, as well as AI voice and facial technologies," Trend Micro researchers Peter Girnus, Aliakbar Zahravi, and Ahmed Mohamed Ibrahim said in a technical report published today. "The campaign uses [Search Engine Optimization] poisoning tactics and social media and messaging platforms to distribute malware." The security vendor, which discovered the new threat actor group in early April 2024, said the attacks entail advertising popular software such as Google Chrome, LetsVPN, QuickVPN, and a Telegram language pack for the Simplified Chinese language to distribute Winos. Alternate attack...

A threat actor who goes by alias markopolo has been identified as behind a large-scale cross-platform scam that targets digital currency users on social media with information stealer malware and carries out cryptocurrency theft. The attack chains involve the use of a purported virtual meeting software named Vortax (and 23 other apps) that are used as a conduit to deliver Rhadamanthys , StealC , and Atomic macOS Stealer (AMOS), Recorded Future's Insikt Group said in an analysis published this week. "This campaign, primarily targeting cryptocurrency users, marks a significant rise in macOS security threats and reveals an expansive network of malicious applications," the cybersecurity company noted , describing markopolo as "agile, adaptable, and versatile." There is evidence connecting the Vortax campaign to prior activity that leveraged trap phishing techniques to target macOS and Windows users via Web3 gaming lures. A crucial aspect of the malicious o...

Two security vulnerabilities have been disclosed in the Mailcow open-source mail server suite that could be exploited by malicious actors to achieve arbitrary code execution on susceptible instances. Both shortcomings impact all versions of the software prior to version 2024-04 , which was released on April 4, 2024. The issues were responsibly disclosed by SonarSource on March 22, 2024. The flaws, rated Moderate in severity, are listed below - CVE-2024-30270 (CVSS score: 6.7) - A path traversal vulnerability impacting a function named "rspamd_maps()" that could result in the execution of arbitrary commands on the server by allowing a threat actor to overwrite any file that's can be modified with the "www-data" user CVE-2024-31204 (CVSS score: 6.8) - A cross-site scripting (XSS) vulnerability via the exception handling mechanism when not operating in the DEV_MODE The second of the two flaws is rooted in the fact that it saves details of the exception...

A controversial proposal put forth by the European Union to scan users' private messages for detection of child sexual abuse material (CSAM) poses severe risks to end-to-end encryption (E2EE), warned Meredith Whittaker, president of the Signal Foundation, which maintains the privacy-focused messaging service of the same name. "Mandating mass scanning of private communications fundamentally undermines encryption. Full Stop," Whittaker said in a statement on Monday. "Whether this happens via tampering with, for instance, an encryption algorithm's random number generation, or by implementing a key escrow system, or by forcing communications to pass through a surveillance system before they're encrypted." The response comes as law makers in Europe are putting forth regulations to fight CSAM with a new provision called "upload moderation" that allows for messages to be scrutinized ahead of encryption. A recent report from Euractiv revealed that...

Threat actors are luring unsuspecting users with free or pirated versions of commercial software to deliver a malware loader called Hijack Loader , which then deploys an information stealer known as Vidar Stealer . "Adversaries had managed to trick users into downloading password-protected archive files containing trojanized copies of a Cisco Webex Meetings App (ptService.exe)," Trellix security researcher Ale Houspanossian said in a Monday analysis. "When unsuspecting victims extracted and executed a 'Setup.exe' binary file, the Cisco Webex Meetings application covertly loaded a stealthy malware loader, which led to the execution of an information-stealing module." The starting point is a RAR archive file that contains an executable name "Setup.exe," but in reality is a copy of Cisco Webex Meetings's ptService module. What makes the campaign noteworthy is the use of DLL side-loading techniques to stealthily launch Hijack Loader (aka DOI...