#The Hacker News

A suspected China-nexus threat actor dubbed UNC4841 has been linked to the exploitation of a recently patched zero-day flaw in Barracuda Email Security Gateway (ESG) appliances since October 2022. "UNC4841 is an espionage actor behind this wide-ranging campaign in support of the People's Republic of China," Google-owned Mandiant said in a new report published today, describing the group as "

The threat actors behind the Vidar malware have made changes to their backend infrastructure, indicating attempts to retool and conceal their online trail in response to public disclosures about their modus operandi. "Vidar threat actors continue to rotate their backend IP infrastructure, favoring providers in Moldova and Russia," cybersecurity company Team Cymru said in a new analysis shared

An updated version of an Android remote access trojan dubbed GravityRAT has been found masquerading as messaging apps BingeChat and Chatico as part of a narrowly targeted campaign since June 2022. "Notable in the newly discovered campaign, GravityRAT can exfiltrate WhatsApp backups and receive commands to delete files," ESET researcher Lukáš Štefanko said in a new report published today. "The

The revolutionary technology of GenAI tools, such as ChatGPT, has brought significant risks to organizations' sensitive data. But what do we really know about this risk? A new research by Browser Security company LayerX sheds light on the scope and nature of these risks. The report titled "Revealing the True GenAI Data Exposure Risk" provides crucial insights for data protection stakeholders and

In what's a new kind of software supply chain attack aimed at open source projects, it has emerged that threat actors could seize control of expired Amazon S3 buckets to serve rogue binaries without altering the modules themselves. "Malicious binaries steal the user IDs, passwords, local machine environment variables, and local host name, and then exfiltrates the stolen data to the hijacked

The Russian threat actor known as Shuckworm has continued its cyber assault spree against Ukrainian entities in a bid to steal sensitive information from compromised environments. Targets of the recent intrusions, which began in February/March 2023, include security services, military, and government organizations, Symantec said in a new report shared with The Hacker News. "In some cases, the

Microsoft on Wednesday took the lid off a "novel and distinct Russian threat actor," which it said is linked to the General Staff Main Intelligence Directorate (GRU) and has a "relatively low success rate." The tech giant's Threat Intelligence team, which was previously tracking the group under its emerging moniker DEV-0586, has graduated it to a named actor dubbed Cadet Blizzard. "Cadet

The threat actors behind the LockBit ransomware-as-a-service (RaaS) scheme have extorted $91 million following hundreds of attacks against numerous U.S. organizations since 2020. That's according to a joint bulletin published by the U.S. Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC

The Chinese state-sponsored group known as UNC3886 has been found to exploit a zero-day flaw in VMware ESXi hosts to backdoor Windows and Linux systems. The VMware Tools authentication bypass vulnerability, tracked as CVE-2023-20867 (CVSS score: 3.9), "enabled the execution of privileged commands across Windows, Linux, and PhotonOS (vCenter) guest VMs without authentication of guest credentials

Two "dangerous" security vulnerabilities have been disclosed in Microsoft Azure Bastion and Azure Container Registry that could have been exploited to carry out cross-site scripting (XSS) attacks. "The vulnerabilities allowed unauthorized access to the victim's session within the compromised Azure service iframe, which can lead to severe consequences, including unauthorized data access,