Detectionhightest

Suspicious Execution From Outlook Temporary Folder

Detects a suspicious program execution in Outlook temp folder

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
Florian Roth (Nextron Systems)Created Tue Oct 01Updated Sun Oct 09a018fdc3-46a3-44e5-9afb-2cd4af1d4b39windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic1 selector
detection:
    selection:
        Image|contains: '\Temporary Internet Files\Content.Outlook\'
    condition: selection
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References
1
Resolving title…
Internal Research
Rule Metadata
Rule ID
a018fdc3-46a3-44e5-9afb-2cd4af1d4b39
Status
test
Level
high
Type
Detection
Created
Tue Oct 01
Modified
Sun Oct 09
Path
rules/windows/process_creation/proc_creation_win_office_outlook_execution_from_temp.yml
Raw Tags
attack.initial-accessattack.t1566.001
View on GitHub