Suspicious Desktopimgdownldr Target File Creation
Detects the creation of a suspicious file by 'svchost.exe' in the 'Personalization\LockScreenImage' directory, specifically looking for files that are not in the 'C:\Windows\' directory and do not have common image extensions like '.jpg', '.jpeg', or '.png'. This behavior can indicate an adversary attempting to download or stage malicious files using the 'desktopimgdownldr' functionality, which is often associated with T1105 (Ingress Tool Transfer).
Sigma
