Update FsiAnyCpu.yml with Sigma (#225)

* Update FsiAnyCpu.yml

* Update acknowledgement

* Update FsiAnyCpu.yml

* fix line feed issue after conflict

Co-authored-by: bohops <jimmy@jbtech.us>

Author: securepeacock

yml/OtherMSBinaries/FsiAnyCpu.yml

@@ -25,6 +25,7 @@ Code_Sample:
 Detection:
   - BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
   - IOC: FsiAnyCpu.exe execution may be suspicious on non-developer machines
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/6b34764215b0e97e32cbc4c6325fc933d2695c3a/rules/windows/process_creation/proc_creation_win_lolbin_fsharp_interpreters.yml
 Resources:
   - Link: https://bohops.com/2020/11/02/exploring-the-wdac-microsoft-recommended-block-rules-part-ii-wfc-fsi/
 Acknowledgement: