Polymarket Trap npm Postinstall Hook Spawning cmd/PowerShell (Miasma/MYRA)

Ibrahim Saud@tektrix

•updated Jun 30, 2026•0•0•4

Detects node.exe spawning cmd.exe or powershell.exe during npm package installation process, indicating potential malicious use of preinstall or postinstall scripts. This pattern has been observed in supply chain attacks involving infostealers like Miasma and MYRA.