Description
'This detection looks for the steps required to conduct a UAC bypass using Fodhelper.exe. By default this detection looks for the setting of the required registry keys and the invoking of the process within 1 hour - this can be tweaked as required.'
- Rule type
- Scheduled
- Version
- 1.0.2
- Declared status
- Available
- Query frequency
- 2h
- Query period
- 2h
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
Data types
KQL query
Original query, unchanged.
SecurityEvent
| where EventID == 4657
| parse ObjectName with "\\REGISTRY\\" KeyPrefix "\\" RegistryKey
| project-reorder RegistryKey
| where RegistryKey has "Software\\Classes\\ms-settings\\shell\\open\\command"
| extend TimeKey = bin(TimeGenerated, 1h)
| join (
SecurityEvent
| where EventID == 4688
| where Process =~ "fodhelper.exe"
| where ParentProcessName endswith "cmd.exe" or ParentProcessName endswith "powershell.exe" or ParentProcessName endswith "powershell_ise.exe"
| extend TimeKey = bin(TimeGenerated, 1h)) on TimeKey, Computer
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
| extend AccountName = tostring(split(TargetAccount, @'\')[1]), AccountNTDomain = tostring(split(TargetAccount, @'\')[0])
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
56f3f35c-3aca-4437-a1fb-b7a84dc4af00
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC