Find sigma rule 
Attack: Signed Binary Proxy Execution: Regsvcs/Regasm
Adversaries may abuse Regsvcs and Regasm to proxy execution of code through a trusted Windows utility. Regsvcs and Regasm are Windows command-line utilities that are used to register .NET Component Object Model (COM) assemblies. Both are binaries that may be digitally signed by Microsoft. (Citation: MSDN Regsvcs) (Citation: MSDN Regasm)
Both utilities may be used to bypass application control through use of attributes within the binary to specify code that should be run before registration or unregistration: [ComRegisterFunction] or [ComUnregisterFunction] respectively. The code with the registration and unregistration attributes will be executed even if the process is run under insufficient privileges and fails to execute. (Citation: LOLBAS Regsvcs)(Citation: LOLBAS Regasm)
MITRE
Tactic
- defense-evasion
technique
- T1218.009
Test : Regasm Uninstall Method Call Test
OS
- windows
Description:
Executes the Uninstall Method, No Admin Rights Required. Upon execution, “I shouldn’t really execute either.” will be displayed.
Executor
command_prompt
Sigma Rule
- proc_creation_win_csc_susp_dynamic_compilation.yml (id: dcaa3f04-70c3-427a-80b4-b870d73c94c4)