The "insidious" nature of these RAR files stems from their ability to bypass traditional user caution:
A path traversal flaw discovered in July 2025 that allows attackers to drop malicious files into sensitive system folders (like the Startup folder) when an archive is opened. insidous.rar
Government-backed groups from Russia (e.g., RomCom, UAC-0099) and China (e.g., Amaranth-Dragon), as well as financially motivated cybercriminals. The "insidious" nature of these RAR files stems