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Cybersecurity researchers have disclosed details of a new banking malware targeting Brazilian users that's written in Rust, marking a significant departure from other known Delphi-based malware families associated with the Latin American cybercrime ecosystem. The malware, which is designed to infect Windows systems and was first discovered last month, has been codenamed VENON by Brazilian cybersecurity company ZenoX. What makes VENON notable is that it shares behaviors that are consistent with established banking trojans targeting the region, such as Grandoreiro, Mekotio, and Coyote, specifically when it comes to features like banking overlay logic, active window monitoring, and a shortcut (LNK) hijacking mechanism. The malware has not been attributed to any previously documented group or campaign. However, an earlier version of the artifact, dating back to January 2026, has been found to expose full paths from the malware author's development environment. The paths repea...

A cybercrime group of Brazilian origin has resurfaced after more than three years to orchestrate a campaign that targets Minecraft players with a new stealer called LofyStealer (aka GrabBot). "The malware disguises itself as a Minecraft hack called 'Slinky,'" Brazil-based cybersecurity company ZenoX said in a technical report. "It uses the official game icon to induce voluntary execution, exploiting the trust of young users in the gaming scene." The activity has been attributed with high confidence to a threat actor known as LofyGang , which was observed leveraging typosquatted packages on the npm registry to push stealer malware in 2022, specifically with an intent to siphon credit card data and user accounts associated with Discord Nitro, gaming, and streaming services. The group, believed to be active since late 2021, advertises their tools and services on platforms like GitHub and YouTube, while also contributing to an underground hacking communit...

A Russian-speaking initial access broker (IAB) driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally. The campaign , active since February 2026, involves collecting credential lists, searching for exposed services, brute-forcing accessible systems, and deploying bespoke sniffers on compromised firewalls. "Once deployed, these sniffers capture cleartext and hashed credentials from traffic passing through compromised devices," SOCRadar said [PDF] in a fresh report. "The actors then crack, validate, and reuse the credentials against Active Directory domains and other exposed services." Central to the operation is a Golang-based tool called FortigateSniffer that takes advantage of the FortiOS built-in diagnostic command -diagnose sniffer packet to passively capture authentication traffic from the infected appliances. Appearing in both Window...

Cybersecurity researchers have disclosed details of a targeted campaign aimed at South Korean financial organizations that used an artificial intelligence (AI) pen testing tool named ARTEX to carry out the attacks. The activity , per CrowdStrike Intelligence, was active from late September to early October 2026, and resulted in data exfiltration from various South Korea-based financial firms , including Shinhan Bank and Yegaram Savings Bank. "In this activity, the threat actor leveraged ARTEX, a recently released open-source agentic penetration testing (pentesting) tool developed in China, alongside large language models (LLMs)," the cybersecurity company said . CrowdStrike said it discovered the campaign after it identified a set of open directories hosted at a Hong Kong-based IP address, exposing Claude Code session histories, Claude memory files, and ARTEX configuration files. The campaign has not been attributed to any known threat actor or group. But evidenc...