Why is iCloud syncing malware??

Just got this message.

"Detected: Program: iPhoneOS/Multiverze

Status: Removed

A threat or app was removed from this device.

Date: 05/03/2026 16:42

Details: This program has potentially unwanted behaviour.

Affected items:

file: C:\Users\User\AppData\Local\Apple Inc\CloudKit\iCloudDrive\MMCS\tmpm-0x0000000000000006"