Detection rules › Splunk
Windows IIS Components Module Failed to Load
The following analytic detects when an IIS Module DLL fails to load due to a configuration problem, identified by EventCode 2282. This detection leverages Windows Application event logs to identify repeated failures in loading IIS modules. Such failures can indicate misconfigurations or potential tampering with IIS components. If confirmed malicious, this activity could lead to service disruptions or provide an attacker with opportunities to exploit vulnerabilities within the IIS environment. Immediate investigation is required to determine the legitimacy of the failing module and to mitigate any potential security risks.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1505.004 Server Software Component: IIS Components |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| IIS-W3SVC-WP | 2282 |
Stages and Predicates
Stage 1: search
search EventCode=2282
Stage 2: stats
stats BY EventCode, dest, Name, ModuleDll
Stage 3: search
search
Stage 4: search
search
Stage 5: search
search `macro`
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 |
|---|---|---|
EventCode | eq |
|