NERC CIP CIP-010 R4 Att1 3.2: CIP-010-4 R4 Att1 3.2: Removable Media: detect and mitigate malicious code before connection

What does CIP-010 R4 Att1 3.2 require?

Detect malicious code on Removable Media using a Cyber Asset other than a BES Cyber System or PCA, and mitigate the threat of detected code before connecting the media to a high or medium impact BES Cyber System or associated PCA.