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SpearSpecter: APT42 Targets Defense and Government

🛡️ The Israel National Digital Agency (INDA) has attributed a new espionage campaign codenamed SpearSpecter to Iranian state‑aligned APT42, active since September 2025 against senior defense and government officials and their family members. Operators employ tailored social engineering—invites to conferences and impersonated WhatsApp contacts—to deliver a WebDAV‑served .LNK via the search‑ms: handler that retrieves a batch script and stages the TAMECAT PowerShell backdoor. TAMECAT uses HTTPS, Discord, and Telegram for command-and-control, supports modular data‑theft capabilities (browser and Outlook exfiltration, screenshots), and relies on Cloudflare Workers, LOLBins, in‑memory execution, and obfuscation to maintain persistent, stealthy access.