In May 2026, ANY.RUN observed a surge in sophisticated phishing and malware campaigns utilizing fileless execution, browser-based credential theft, and legitimate workflow abuse. Key threats included Agent Tesla credential harvesting, ClickFix fileless malware, BlobPhish in-memory page generation, and phishing-to-RMM chains bypassing traditional MFA via real-time OTP interception.
Fileless Malware
2 posts
Major Cyber Attacks in May 2026: Fake Invitations, Agent Tesla, BlobPhish, and More SEO poisoning campaign leverages Gemini and Claude Code impersonation to deliver infostealer A financially motivated eCrime campaign is leveraging SEO poisoning to impersonate AI coding assistants like Gemini CLI and Claude Code, tricking developers into executing a fileless PowerShell infostealer. The malware executes entirely in memory, disables Windows telemetry (ETW and AMSI), and harvests sensitive enterprise credentials, session tokens, and files before exfiltrating them to attacker-controlled infrastructure.