Detectionhightest
IE ZoneMap Setting Downgraded To MyComputer Zone For HTTP Protocols Via CLI
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)Created Tue Sep 0510344bb3-7f65-46c2-b915-2d00d47be5b0windows
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:
CommandLine|contains|all:
- '\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProtocolDefaults'
- 'http'
- ' 0'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Rule Metadata
Rule ID
10344bb3-7f65-46c2-b915-2d00d47be5b0
Status
test
Level
high
Type
Detection
Created
Tue Sep 05
Path
rules/windows/process_creation/proc_creation_win_registry_ie_security_zone_protocol_defaults_downgrade.yml
Raw Tags
attack.executionattack.defense-evasion