Shells in Plain Sight - Storing Payloads in the Cloud

This blog-style technical writeup demonstrates a proof-of-concept for hiding PowerShell shells inside PNG image pixels (using RED/ALPHA channels), hosting the manipulated images on public services (Twitter, Wikimedia), and retrieving/executing the payload with a PowerShell decoder. The post includes encoder/decoder code, a delimiter scheme, discussion of limitations (file format, image size, visibility), and suggestions to make detection harder, while noting that EDR and Invoke-Expression usage remain detection risks.