HighSigmaHQ Florian Roth (Nextron Systems)

Suspicious Desktopimgdownldr Target File

Detects a suspicious Microsoft desktopimgdownldr file creation that stores a file to a suspicious location or contains a file with a suspicious extension

Detection logic

Detection requirements

Platform: ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: file_event

Known benign triggers

False positives depend on scripts and administrative tools used in the monitored environment

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
labs.sentinelone.com/living-off-windows-land-a-new-native-file-downldr/	Unclassified	3from 2 sources
twitter.com/SBousseaden/status/1278977301745741825	Social post	2

Detection rules

Suspicious Desktopimgdownldr Target File

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules