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The stealer malware known as  LummaC2  (aka Lumma Stealer) now features a new anti-sandbox technique that leverages the mathematical principle of trigonometry to evade detection and exfiltrate valuable information from infected hosts. The method is designed to "delay detonation of the sample until human mouse activity is detected," Outpost24 security researcher Alberto Marín  said  in a technical report shared with The Hacker News. Written in the C programming language, LummaC2 has been sold in underground forums since December 2022. The malware has since  received   iterative updates  that make it harder to analyze via control flow flattening and even allow it to deliver additional payloads. The current version of LummaC2 (v4.0) also requires its customers to use a  crypter  as an added concealing mechanism, not to mention prevent it from being leaked in its raw form. Another noteworthy update is the reliance on trigonometry to detect ...

Bitcoin wallets created between 2011 and 2015 are susceptible to a new kind of exploit called  Randstorm  that makes it possible to recover passwords and gain unauthorized access to a multitude of wallets spanning several blockchain platforms. "Randstorm() is a term we coined to describe a collection of bugs, design decisions, and API changes that, when brought in contact with each other, combine to dramatically reduce the quality of random numbers produced by web browsers of a certain era (2011-2015)," Unciphered  disclosed  in a report published last week. It's estimated that approximately 1.4 million bitcoins are parked in wallets that were generated with potentially weak cryptographic keys. Customers can check whether their wallets are vulnerable at www.keybleed[.]com. The cryptocurrency recovery company said it re-discovered the problem in January 2022 while it was  working for an unnamed customer  who had been locked out of its Blockchain.co...

The threat actors behind the  8Base ransomware  are leveraging a variant of the Phobos ransomware to conduct their financially motivated attacks. The findings come from Cisco Talos, which has recorded an increase in activity carried out by the cybercriminals. "Most of the group's Phobos variants are distributed by SmokeLoader, a backdoor trojan," security researcher Guilherme Venere said in an exhaustive  two-part   analysis  published Friday. "This commodity loader typically drops or downloads additional payloads when deployed. In 8Base campaigns, however, it has the ransomware component embedded in its encrypted payloads, which is then decrypted and loaded into the SmokeLoader process' memory." 8Base came into sharp focus in mid-2023, when a similar spike in activity was observed by the cybersecurity community. It's said to be active at least since March 2022. A  previous analysis  from VMware Carbon Black in June 2023 identified parallels betw...

Russian cyber espionage actors affiliated with the Federal Security Service (FSB) have been observed using a USB propagating worm called  LitterDrifter  in attacks targeting Ukrainian entities. Check Point, which  detailed  Gamaredon's (aka Aqua Blizzard, Iron Tilden, Primitive Bear, Shuckworm, and Winterflounder) latest tactics, branded the group as engaging in large-scale campaigns that are followed by "data collection efforts aimed at specific targets, whose selection is likely motivated by espionage goals." The LitterDrifter worm packs in two main features: automatically spreading the malware via connected USB drives as well as communicating with the threat actor's command-and-control (C&C) servers. It's also suspected to be an evolution of a PowerShell-based USB worm that was previously  disclosed  by Symantec in June 2023. Written in VBS, the spreader module is responsible for distributing the worm as a hidden file in a USB drive together with...

Threat actors are leveraging manipulated search results and bogus Google ads that trick users who are looking to download legitimate software such as WinSCP into installing malware instead. Cybersecurity company Securonix is tracking the ongoing activity under the name  SEO#LURKER . "The malicious advertisement directs the user to a compromised WordPress website gameeweb[.]com, which redirects the user to an attacker-controlled phishing site," security researchers Den Iuzvyk, Tim Peck, and Oleg Kolesnikov  said  in a report shared with The Hacker News. The threat actors are believed to leverage Google's Dynamic Search Ads ( DSAs ), which automatically generates ads based on a site's content to serve the malicious ads that take the victims to the infected site. The ultimate goal of the complex multi-stage attack chain is to entice users into clicking on the fake, lookalike WinSCP website, winccp[.]net, and download the malware. "Traffic from the gaweeweb[.]com websi...

The U.S. Federal Communications Commission (FCC) is adopting new rules that aim to protect consumers from cell phone account scams that make it possible for malicious actors to orchestrate SIM-swapping attacks and port-out fraud. "The rules will help protect consumers from scammers who target data and personal information by covertly swapping SIM cards to a new device or porting phone numbers to a new carrier without ever gaining physical control of a consumer's phone," FCC  said  this week. While SIM swapping refers to transferring a user's account to a SIM card controlled by the scammer by convincing the victim's wireless carrier,  port-out fraud  occurs when the bad actor, posing as the victim, transfers their phone number from one service provider to another without their knowledge. The new rules,  first proposed in July 2023 , mandate wireless providers to adopt secure methods of authenticating a customer before redirecting a customer's phone number to...

In 2023, the cloud isn't just a technology—it's a battleground. Zenbleed, Kubernetes attacks, and sophisticated APTs are just the tip of the iceberg in the cloud security warzone. In collaboration with the esteemed experts from Lacework Labs, The Hacker News proudly presents an exclusive webinar: ' Navigating the Cloud Attack Landscape: 2023 Trends, Techniques, and Tactics .' Join us for an insightful session led by Jose Hernandez of Lacework Labs, where we dissect and analyze the year's most pressing cloud security issues. This webinar is not just about theory; it's a practical guide filled with actionable strategies to shield your organization from advanced threats in the cloud.  Highlights include: Kubernetes Security Breaches:  Explore the surge in Kubernetes-related vulnerabilities and the concerning increase in administrative plane abuses. Zenbleed in Focus:  Understand the far-reaching impact of the Zenbleed vulnerability and how Lacework Labs is...

An unknown threat actor has been observed publishing typosquat packages to the Python Package Index (PyPI) repository for nearly six months with an aim to deliver malware capable of gaining persistence, stealing sensitive data, and accessing cryptocurrency wallets for financial gain. The 27 packages, which masqueraded as popular legitimate Python libraries, attracted thousands of downloads, Checkmarx said in a new report. A majority of the downloads originated from the U.S., China, France, Hong Kong, Germany, Russia, Ireland, Singapore, the U.K., and Japan. "A defining characteristic of this attack was the utilization of steganography to hide a malicious payload within an innocent-looking image file, which increased the stealthiness of the attack," the software supply chain security firm  said . Some of the packages are pyefflorer, pyminor, pyowler, pystallerer, pystob, and pywool, the last of which was planted on May 13, 2023. A common denominator to these packages is t...

U.S. cybersecurity and intelligence agencies have released a joint advisory about a cybercriminal group known as  Scattered Spider  that's known to employ sophisticated phishing tactics to infiltrate targets. "Scattered Spider threat actors typically engage in data theft for extortion using multiple social engineering techniques and have recently leveraged BlackCat/ALPHV ransomware alongside their usual TTPs," the agencies  said . The threat actor, also tracked under the monikers Muddled Libra, Octo Tempest, 0ktapus, Scatter Swine, Star Fraud, and UNC3944, was the subject of an  extensive profile  from Microsoft last month, with the tech giant calling it "one of the most dangerous financial criminal groups." Considered as experts in social engineering, Scattered Spider is known to rely on phishing, prompt bombing, and SIM swapping attacks to obtain credentials, install remote access tools, and bypass multi-factor authentication (MFA). Scattered Spider, li...