Detectionhightest
Renamed BrowserCore.EXE Execution
Detects process creation with a renamed BrowserCore.exe (used to extract Azure tokens)
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Max Altgelt (Nextron Systems)Created Thu Jun 02Updated Fri Feb 038a4519e8-e64a-40b6-ae85-ba8ad2177559windows
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 Logic2 selectors
detection:
selection:
OriginalFileName: BrowserCore.exe
filter_realbrowsercore:
Image|endswith: '\BrowserCore.exe'
condition: selection and not 1 of filter_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Techniques
Sub-techniques
Rule Metadata
Rule ID
8a4519e8-e64a-40b6-ae85-ba8ad2177559
Status
test
Level
high
Type
Detection
Created
Thu Jun 02
Modified
Fri Feb 03
Path
rules/windows/process_creation/proc_creation_win_renamed_browsercore.yml
Raw Tags
attack.credential-accessattack.defense-evasionattack.t1528attack.t1036.003