PowerShell script performing JPEG pixel steganography extraction and in-memory decryption

Emiliano Mema@Nosalva

•updated Jul 17, 2026•0•0•2

Detects PowerShell scripts containing logic indicative of extracting payloads hidden via steganography (e.g., LSB or channel-based extraction from pixel data) combined with memory-based decryption. This behavior is commonly associated with stealthy malware loaders attempting to reconstruct malicious code from image files.