Detection rules › Sigma
New Module Module Added To IIS Server
Detects the addition of a new module to an IIS server.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1505.004 Server Software Component: IIS Components |
| Defense Evasion | T1562.002 Impair Defenses: Disable Windows Event Logging |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| IIS-Configuration | 29 | Changes to 'Configuration' at 'ConfigPath' have successfully been committed. |
Stages and Predicates
Stage 1: selection
Configuration|contains: '/system.webServer/modules/add'
Stage 2: not 1 of filter_main_*
NewValue: ['', AnonymousAuthenticationModule, CustomErrorModule, DefaultDocumentModule, DirectoryListingModule, FileCacheModule, HttpCacheModule, HttpLoggingModule, ProtocolSupportModule, RequestFilteringModule, StaticCompressionModule, StaticFileModule, TokenCacheModule, UriCacheModule]
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Configuration | match |
|
NewValue | eq |
|