Detectionhightest
Potential Persistence Via Outlook Today Page
Detects potential persistence activity via outlook today page. An attacker can set a custom page to execute arbitrary code and link to it via the registry values "URL" and "UserDefinedUrl".
Convert In Phoenix Studio
Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.
Launch
Tobias Michalski, David Bertho & Eirik Sveen, StorebrandCreated Thu Jun 10Updated Wed Aug 07487bb375-12ef-41f6-baae-c6a1572b4dd1windows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic4 selectors
detection:
selection_main:
TargetObject|contains|all:
- 'Software\Microsoft\Office\'
- '\Outlook\Today\'
selection_value_stamp:
TargetObject|endswith: '\Stamp'
Details: 'DWORD (0x00000001)'
selection_value_url:
TargetObject|endswith:
- '\URL'
- '\UserDefinedUrl'
filter_main_office:
Image|startswith:
- 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\'
- 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\'
Image|endswith: '\OfficeClickToRun.exe'
condition: selection_main and 1 of selection_value_* and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Techniques
Rule Metadata
Rule ID
487bb375-12ef-41f6-baae-c6a1572b4dd1
Status
test
Level
high
Type
Detection
Created
Thu Jun 10
Modified
Wed Aug 07
Path
rules/windows/registry/registry_set/registry_set_persistence_outlook_todaypage.yml
Raw Tags
attack.defense-evasionattack.persistenceattack.t1112