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A hacking outfit nicknamed  Earth Estries  has been attributed to a new, ongoing cyber espionage campaign targeting government and technology industries based in the Philippines, Taiwan, Malaysia, South Africa, Germany, and the U.S. "The threat actors behind Earth Estries are working with high-level resources and functioning with sophisticated skills and experience in cyber espionage and illicit activities," Trend Micro researchers Ted Lee, Lenart Bermejo, Hara Hiroaki, Leon M Chang, and Gilbert Sison  said . Active since at least 2020, Earth Estries is said to share tactical overlaps with another nation-state group tracked as  FamousSparrow , which was first exposed by ESET in 2021 as exploiting ProxyLogon flaws in Microsoft Exchange Server to penetrate hospitality, government, engineering, and legal sectors. It's worth pointing out that commonalities have also been unearthed between FamousSparrow and  UNC4841 , an uncategorized activity cluster held respo...

New findings show that malicious actors could leverage a sneaky malware detection evasion technique and bypass endpoint security solutions by manipulating the Windows Container Isolation Framework. The findings were presented by Deep Instinct security researcher Daniel Avinoam at the  DEF CON security conference  held earlier this month. Microsoft's  container architecture  (and by extension,  Windows Sandbox ) uses what's called a  dynamically generated image  to separate the file system from each container to the host and at the same time avoid duplication of system files. It's nothing but an "operating system image that has clean copies of files that can change, but links to files that cannot change that are in the Windows image that already exists on the host," thereby bringing down the overall size for a full OS. "The result is images that contain 'ghost files,' which store no actual data but point to a different volume on the system,"...

A previously undocumented Android banking trojan dubbed  MMRat  has been observed targeting mobile users in Southeast Asia since late June 2023 to remotely commandeer the devices and perform financial fraud. "The malware, named after its distinctive package name com.mm.user, can capture user input and screen content, and can also remotely control victim devices through various techniques, enabling its operators to carry out bank fraud on the victim's device," Trend Micro  said . What makes MMRat stand apart from others of its kind is the use of a customized command-and-control (C2) protocol based on protocol buffers (aka  protobuf ) to efficiently transfer large volumes of data from compromised handsets, demonstrating the growing sophistication of Android malware. Possible targets based on the language used in the phishing pages include Indonesia, Vietnam, Singapore, and the Philippines. The entry point of the attacks is a network of phishing sites that mimic o...

Cybersecurity researchers have discovered malicious Android apps for Signal and Telegram distributed via the Google Play Store and Samsung Galaxy Store that are engineered to deliver the BadBazaar spyware on infected devices. Slovakian company ESET attributed the campaign to a China-linked actor called  GREF . "Most likely active since July 2020 and since July 2022, respectively, the campaigns have distributed the Android BadBazaar espionage code through the Google Play store, Samsung Galaxy Store, and dedicated websites representing the malicious apps Signal Plus Messenger and FlyGram," security researcher Lukáš Štefanko  said  in a new report shared with The Hacker News. Victims have been primarily detected in Germany, Poland, and the U.S., followed by Ukraine, Australia, Brazil, Denmark, Congo-Kinshasa, Hong Kong, Hungary, Lithuania, the Netherlands, Portugal, Singapore, Spain, and Yemen. BadBazaar was  first documented  by Lookout in November 2022 as ta...

ChatGPT and similar large language models (LLMs) have added further complexity to the ever-growing online threat landscape. Cybercriminals no longer need advanced coding skills to execute fraud and other damaging attacks against online businesses and customers, thanks to bots-as-a-service, residential proxies, CAPTCHA farms, and other easily accessible tools.  Now, the latest technology damaging businesses’ bottom line is  ChatGPT . Not only have ChatGPT, OpenAI, and other LLMs raised ethical issues by  training their models  on scraped data from across the internet. LLMs are negatively impacting enterprises’ web traffic, which can be extremely damaging to business.  3 Risks Presented by LLMs, ChatGPT, & ChatGPT Plugins Among the threats ChatGPT and ChatGPT plugins can pose against online businesses, there are three key risks we will focus on: Content theft  (or republishing data without permission from the original source)can hurt the authority,...

An unknown threat actor is leveraging malicious npm packages to target developers with an aim to steal source code and configuration files from victim machines, a sign of how threats lurk consistently in open-source repositories. "The threat actor behind this campaign has been linked to malicious activity dating back to 2021," software supply chain security firm Checkmarx  said  in a report shared with The Hacker News. "Since then, they have continuously published malicious packages." The latest report is a continuation of the  same campaign  that Phylum disclosed at the start of the month in which a number of npm modules were engineered to exfiltrate valuable information to a remote server. The packages, by design, are configured to execute immediately post-installation by means of a postinstall hook defined in the package.json file. It triggers the launch of preinstall.js, which spawns index.js to capture the system metadata as well as harvest source code and...