Increase in Lumma Stealer Activity Coincides with Use of Adaptive Browser Fingerprinting Tactics

In the wake of a targeted doxxing campaign last month that exposed the alleged core members of Lumma Stealer (which Trend Micro tracks as Water Kurita), the underground infostealer landscape experienced a significant upheaval. As detailed in Trend Research’s previous Read More …

Fast, Broad, and Elusive: How Vidar Stealer 2.0 Upgrades Infostealer Capabilities

On October 6, 2025, the developer known as “Loadbaks” announced the release of Vidar Stealer v2.0 on underground forums. This new version features a complete transition from C++ to a pure C implementation, allegedly enhancing performance and efficiency. Its release Read More …

Stealc Malware Checks Everything – Even the Screen Resolution

This week, the SonicWall Capture Labs threat research team reviewed a sample of Stealc malware. This is an infostealer that digs through a victim’s system to extract credentials from browsers, cryptocurrency wallets and fileshare servers. Processes are monitored, as well Read More …

Tusk: unraveling a complex infostealer campaign

Kaspersky Global Emergency Response Team (GERT) has identified a complex campaign, consisting of multiple sub-campaigns orchestrated by Russian-speaking cybercriminals. The sub-campaigns imitate legitimate projects, slightly modifying names and branding and using multiple social media accounts to increase their credibility. In Read More …