Rule Library

Sigma Rules

11 rules found for "MSFT"

3,731Total
3,132Detection
457Emerging
139Hunting
Detectionhightest

App Granted Microsoft Permissions

Detects when an application is granted delegated or app role permissions for Microsoft Graph, Exchange, Sharepoint, or Azure AD

Azureauditlogs
Bailey Bercik+1Sun Jul 10cloud
Detectionmediumtest

New Firewall Rule Added In Windows Firewall Exception List Via WmiPrvSE.EXE

Detects the addition of a new "Allow" firewall rule by the WMI process (WmiPrvSE.EXE). This can occur if an attacker leverages PowerShell cmdlets such as "New-NetFirewallRule", or directly uses WMI CIM classes such as "MSFT_NetFirewallRule".

Windowsfirewall-as
François Hubaut+1Fri May 10windows
Detectionmediumtest

ISO Image Mounted

Detects the mount of an ISO image on an endpoint

Windowssecurity
Syed HasanSat May 29windows
Detectionhightest

Suspicious Svchost Process Access

Detects suspicious access to the "svchost" process such as that used by Invoke-Phantom to kill the thread of the Windows event logging service.

WindowsProcess Access
Tim BurrellThu Jan 02windows
Emerging Threathightest

Peach Sandstorm APT Process Activity Indicators

Detects process creation activity related to Peach Sandstorm APT

WindowsProcess Creation
X__Junior (Nextron Systems)Mon Jan 152023
Emerging Threatmediumtest

Potential Peach Sandstorm APT C2 Communication Activity

Detects potential C2 communication activity related to Peach Sandstorm APT

Proxy Log
X__Junior (Nextron Systems)Mon Jan 152023
Emerging Threathightest

Forest Blizzard APT - File Creation Activity

Detects the creation of specific files inside of ProgramData directory. These files were seen being created by Forest Blizzard as described by MSFT.

WindowsFile Event
Nasreddine Bencherchali (Nextron Systems)Tue Apr 232024
Emerging Threathighexperimental

Forest Blizzard APT - Process Creation Activity

Detects the execution of specific processes and command line combination. These were seen being created by Forest Blizzard as described by MSFT.

WindowsProcess Creation
Nasreddine Bencherchali (Nextron Systems)Tue Apr 232024
Emerging Threathightest

Forest Blizzard APT - Custom Protocol Handler Creation

Detects the setting of a custom protocol handler with the name "rogue". Seen being created by Forest Blizzard APT as reported by MSFT.

WindowsRegistry Set
Nasreddine Bencherchali (Nextron Systems)Tue Apr 232024
Emerging Threathightest

Forest Blizzard APT - Custom Protocol Handler DLL Registry Set

Detects the setting of the DLL that handles the custom protocol handler. Seen being created by Forest Blizzard APT as reported by MSFT.

WindowsRegistry Set
Nasreddine Bencherchali (Nextron Systems)Tue Apr 232024
Emerging Threathighexperimental

Potential Exploitation of GoAnywhere MFT Vulnerability

Detects suspicious command execution by child processes of the GoAnywhere Managed File Transfer (MFT) application, which may indicate exploitation such as CVE-2025-10035. This behavior is indicative of post-exploitation activity related to CVE-2025-10035, as observed in campaigns by the threat actor Storm-1175.

WindowsProcess Creation
MSFT+1Tue Oct 072025