Query: Sigma rule for Detects the use of WinAPI Functions via the commandline. As seen used by threat actors via the tool winapiexec
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 of "rundll32" calling "advpack.dll" with potential obfuscated ordinal calls in order to leverage the ". Logsource: windows / process_creation. Rule: title: Suspicious Advpack Call Via Rundll32.EXE id: a1473adb-5338-4a20-b4c3-126763e2d3d3 status: test description: Detects execution of "rundll32" calling "advpack.dll" with potential obfuscated ordinal calls in order to leverage the "RegisterOCX" function references: - https://twitter.com/Hexacorn/status/1224848930795552769 - http://www.hexacorn.com/blog/2020/02/05/stay-positive-lolbins-not/ author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) date: 2023-05-17 tags: - attack.stealth logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \rundll32.exe - OriginalFileName: RUNDLL32.EXE - CommandLine|contains: rundll32 selection_cli_dll: CommandLine|contains: advpack selection_cli_ordinal: - CommandLine|contains|all: - '#+' - '12' - CommandLine|contains: '#-' condition: all of selection_* falsepositives: - Unlikely level: high