Detection rules › Sigma
Assembly DLL Creation Via AspNetCompiler
Detects the creation of new DLL assembly files by "aspnet_compiler.exe", which could be a sign of "aspnet_compiler" abuse to proxy execution through a build provider.
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 11 | FileCreate |
Stages and Predicates
Stage 1: selection
Image|endswith: '\aspnet_compiler.exe'
TargetFilename|contains: .dll
TargetFilename|contains: '\Temporary ASP.NET Files\'
TargetFilename|contains: '\assembly\tmp\'
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 |
|---|---|---|
Image | ends_with |
|
TargetFilename | match |
|