All news with #ta542 tag

🔍 Proofpoint researchers uncovered TA585, a cybercriminal group that operates its own phishing, delivery and malware infrastructure rather than outsourcing. The actor distributes MonsterV2, a subscription-based RAT/stealer/loader that avoids CIS systems and offers modules like HVNC. Early 2025 campaigns used ClickFix social engineering and compromised sites with fake CAPTCHAs to filter victims and deliver payloads, and organisations should train users to spot ClickFix and restrict PowerShell for non-admins.

⚠️Kaspersky tracked TA558, operating under the cluster known as RevengeHotels, using AI-generated JavaScript and PowerShell loaders in summer 2025 to deliver Venom RAT to hotels in Brazil and Spanish-speaking markets. Phishing emails in Portuguese and Spanish used reservation and job-application lures to coax users into running a WScript payload that chains to a PowerShell downloader fetching 'cargajecerrr.txt' and subsequent loaders. The Venom RAT, based on Quasar, includes data-stealing, reverse-proxy, persistence and aggressive anti-kill features aimed at harvesting payment card data from hotel systems and OTAs.