Comment on This Week in Security: Arch AUR, Steam Marketplace, WordPress All Face Issues, Taco-Themed Coding, and Mythos Makes National News by Ostracus

"Once a user is infected, the malware also steals the current Steam login credentials, and several instances attempt to then upload additional infected wallpapers to the Steam Workshop under the compromised users identity, completing the supply chain circle of life."

Let me guess. Steamguard doesn't help?