From 8d35738a1f5b2c3454c66950dd1375d3fd183e49 Mon Sep 17 00:00:00 2001 From: securepeacock <92804416+securepeacock@users.noreply.github.com> Date: Wed, 28 Dec 2022 23:41:27 -0500 Subject: [PATCH] Update Fsi.yml with Sigma (#226) * Update Fsi.yml * Update acknowledgement * Remove newline * resolving unix lf issue with fsi * resolving unix lf issue with fsi * resolving fsi issue Co-authored-by: bohops --- yml/OtherMSBinaries/Fsi.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/yml/OtherMSBinaries/Fsi.yml b/yml/OtherMSBinaries/Fsi.yml index fe18464..7204f81 100644 --- a/yml/OtherMSBinaries/Fsi.yml +++ b/yml/OtherMSBinaries/Fsi.yml @@ -1,4 +1,3 @@ ---- Name: Fsi.exe Description: 64-bit FSharp (F#) Interpreter included with Visual Studio and DotNet Core SDK. Author: Jimmy (@bohops) @@ -28,6 +27,7 @@ Detection: - Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml - BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules - IOC: Fsi.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://twitter.com/NickTyrer/status/904273264385589248 - Link: https://bohops.com/2020/11/02/exploring-the-wdac-microsoft-recommended-block-rules-part-ii-wfc-fsi/