Query: Sigma YAML for windows / process_creation
Matching passage: Sigma rule: Detects the use of WinAPI Functions via the commandline. As seen used by threat actors via the tool winapiexec. Logsource: windows / process_creation. Rule: title: Potential WinAPI Calls Via CommandLine id: ba3f5c1b-6272-4119-9dbd-0bc8d21c2702 related: - id: 03d83090-8cba-44a0-b02f-0b756a050306 type: derived status: test description: Detects the use of WinAPI Functions via the commandline. As seen used by threat actors via the tool winapiexec references: - https://twitter.com/m417z/status/1566674631788007425 author: Nasreddine Bencherchali (Nextron Systems) date: 2022-09-06 modified: 2025-03-06 tags: - attack.execution - attack.t1106 logsource: category: process_creation product: windows detection: selection: CommandLine|contains: - AddSecurityPackage - AdjustTokenPrivileges - Advapi32 - CloseHandle - CreateProcessWithToken - CreatePseudoConsole - CreateRemoteThread - CreateThread - CreateUserThread - DangerousGetHandle - DuplicateTokenEx - EnumerateSecurityPackages - FreeHGlobal - FreeLibrary - GetDelegateForFunctionPointer - GetLogonSessionData - GetModuleHandle - GetProcAddress - GetProcessHandle - GetTokenInformation - ImpersonateLoggedOnUser - kernel32 - LoadLibrary - memcpy - MiniDumpWriteDump - ntdll - OpenDesktop - OpenProcess - OpenProcessToken - OpenThreadToken - OpenWindowStation - PtrToString - QueueUserApc - ReadProcessMemory - RevertToSelf - RtlCreateUserThread - secur32 - SetThreadToken - VirtualAlloc - VirtualFree - VirtualProtect - WaitForSingleObject - WriteInt32 - WriteProcessMemory - ZeroFreeGlobalAllocUnicode filter_optional_mpcmdrun: Image|endswith: \MpCmdRun.exe CommandLine|contains: GetLoadLibraryWAddress32 filter_optional_compatTelRunner: ParentImage|endswith: \CompatTelRunner.exe CommandLine|contains: - FreeHGlobal - PtrToString - kernel32 - CloseHandle condition: selection and not 1 of filter_optional_* falsepositives: - Some legitimate action or applications may use these functions. Investigate further to determine the legitimacy of the activity. level: high
Near-miss passage: Sigma rule: Detects execution and usage of the DSInternals PowerShell module. Which can be used to perform what might be considered. Logsource: windows / ps_script. Rule: title: DSInternals Suspicious PowerShell Cmdlets - ScriptBlock id: 846c7a87-8e14-4569-9d49-ecfd4276a01c related: - id: 43d91656-a9b2-4541-b7e2-6a9bd3a13f4e type: similar status: test description: 'Detects execution and usage of the DSInternals PowerShell module. Which can be used to perform what might be considered as suspicious activity such as dumping DPAPI backup keys or manipulating NTDS.DIT files. The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. These include FIDO2 and NGC key auditing, offline ntds.dit file manipulation, password auditing, DC recovery from IFM backups and password hash calculation. ' references: - https://github.com/MichaelGrafnetter/DSInternals/blob/39ee8a69bbdc1cfd12c9afdd7513b4788c4895d4/Src/DSInternals.PowerShell/DSInternals.psd1 author: Nasreddine Bencherchali (Nextron Systems) date: 2024-06-26 tags: - attack.execution - attack.t1059.001 logsource: product: windows category: ps_script definition: 'Requirements: Script Block Logging must be enabled' detection: selection: ScriptBlockText|contains: - Add-ADDBSidHistory - Add-ADNgcKey - Add-ADReplNgcKey - ConvertFrom-ADManagedPasswordBlob - ConvertFrom-GPPrefPassword - ConvertFrom-ManagedPasswordBlob - ConvertFrom-UnattendXmlPassword - ConvertFrom-UnicodePassword - ConvertTo-AADHash - ConvertTo-GPPrefPassword - ConvertTo-KerberosKey - ConvertTo-LMHash - ConvertTo-MsoPasswordHash - ConvertTo-NTHash - ConvertTo-OrgIdHash - ConvertTo-UnicodePassword - Disable-ADDBAccount - Enable-ADDBAccount - Get-ADDBAccount - Get-ADDBBackupKey - Get-ADDBDomainController - Get-ADDBGroupManagedServiceAccount - Get-ADDBKdsRootKey - Get-ADDBSchemaAttribute - Get-ADDBServiceAccount - Get-ADDefaultPasswordPolicy - Get-ADKeyCredential - Get-ADPasswordPolicy - Get-ADReplAccount - Get-ADReplBackupKey - Get-ADReplicationAccount - Get-ADSIAccount - Get-AzureADUserEx - Get-BootKey - Get-KeyCredential - Get-LsaBackupKey - Get-LsaPolicy - Get-SamPasswordPolicy - Get-SysKey - Get-SystemKey - New-ADDBRestoreFromMediaScript - New-ADKeyCredential - New-ADNgcKey - New-NTHashSet - Remove-ADDBObject - Save-DPAPIBlob - Set-ADAccountPasswordHash - Set-ADDBAccountPassword - Set-ADDBBootKey - Set-ADDBDomainController - Set-ADDBPrimaryGroup - Set-ADDBSysKey - Set-AzureADUserEx - Set-LsaPolicy - Set-SamAccountPasswordHash - Set-WinUserPasswordHash - Test-ADDBPasswordQuality - Test-ADPasswordQuality - Test-ADReplPasswordQuality - Test-PasswordQuality - Unlock-AD