Detectionmediumtest
New Module Module Added To IIS Server
Detects the addition of a new module to an IIS server.
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Log Source
Windowsiis-configuration
ProductWindows← raw: windows
Serviceiis-configuration← raw: iis-configuration
Detection Logic
Detection Logic3 selectors
detection:
selection:
EventID: 29
Configuration|contains: '/system.webServer/modules/add'
filter_main_builtin:
NewValue:
- 'AnonymousAuthenticationModule'
- 'CustomErrorModule'
- 'DefaultDocumentModule'
- 'DirectoryListingModule'
- 'FileCacheModule'
- 'HttpCacheModule'
- 'HttpLoggingModule'
- 'ProtocolSupportModule'
- 'RequestFilteringModule'
- 'StaticCompressionModule'
- 'StaticFileModule'
- 'TokenCacheModule'
- 'UriCacheModule'
filter_main_remove:
NewValue: ''
condition: selection and not 1 of filter_main_*False Positives
Legitimate administrator activity
MITRE ATT&CK
Rule Metadata
Rule ID
dd857d3e-0c6e-457b-9b48-e82ae7f86bd7
Status
test
Level
medium
Type
Detection
Created
Sun Oct 06
Author
Path
rules/windows/builtin/iis-configuration/win_iis_module_added.yml
Raw Tags
attack.defense-evasionattack.persistenceattack.t1562.002attack.t1505.004