Detectionhightest
IE ZoneMap Setting Downgraded To MyComputer Zone For HTTP Protocols
Detects changes to Internet Explorer's (IE / Windows Internet properties) ZoneMap configuration of the "HTTP" and "HTTPS" protocols to point to the "My Computer" zone. This allows downloaded files from the Internet to be granted the same level of trust as files stored locally.
Convert In Phoenix Studio
Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.
Launch
Nasreddine Bencherchali (Nextron Systems), Michael HaagCreated Tue Sep 053fd4c8d7-8362-4557-a8e6-83b29cc0d724windows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic1 selector
detection:
selection:
TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProtocolDefaults'
TargetObject|endswith:
- '\http'
- '\https'
Details|contains: 'DWORD (0x00000000)'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
3fd4c8d7-8362-4557-a8e6-83b29cc0d724
Status
test
Level
high
Type
Detection
Created
Tue Sep 05
Path
rules/windows/registry/registry_set/registry_set_ie_security_zone_protocol_defaults_downgrade.yml
Raw Tags
attack.defense-evasion