runonce.exe

File Path: C:\Windows\system32\runonce.exe
Description: Run Once Wrapper

Hashes

Type	Hash
MD5	`EC798C94932A86C01742220825073416`
SHA1	`1478DC8635B564C740103C6A8FF5CAF8374DA0A0`
SHA256	`5994E053D58DB049F4BAB2117C51CC314D1553BC6793FF000B232B66F709B0D7`
SHA384	`C5CCED9623776636F0C0E586AEE2CF3DCCEB5D2BFD1621A3985C6C568609A72E1FBB3FE1643856DB83949F2FAA53D463`
SHA512	`6B5CA46B74879732D8A147FBCB950CC7CD846264E05D5D7A27E25BB70CABF8451E68C564BDF02FE2BF33C3C885021252692D1A2ED8376F61022DAD87BCFDE524`
SSDEEP	`1536:vhMChceJibHnk/MkccqpyfDqsS92mqN1x7S9a1MvZ5v/G:66OcqpyrSMBN11SAqRJu`
IMP	`350A36A0685299C2C1A6E561AE87CE6F`
PESHA1	`5B7A9CF10DD182C834FC3B91EE7DA302775D8FE9`
PE256	`0D648EC1214936853BA520F4FBFCCCFEA85EF03E4BC7DB038034EADEEB46743E`

Runtime Data

Loaded Modules:

Path
C:\Windows\System32\ADVAPI32.dll
C:\Windows\System32\combase.dll
C:\Windows\System32\GDI32.dll
C:\Windows\System32\gdi32full.dll
C:\Windows\System32\KERNEL32.DLL
C:\Windows\System32\KERNELBASE.dll
C:\Windows\System32\msvcp_win.dll
C:\Windows\System32\msvcrt.dll
C:\Windows\SYSTEM32\ntdll.dll
C:\Windows\System32\ole32.dll
C:\Windows\System32\RPCRT4.dll
C:\Windows\system32\runonce.exe
C:\Windows\System32\sechost.dll
C:\Windows\System32\SHELL32.dll
C:\Windows\System32\SHLWAPI.dll
C:\Windows\System32\ucrtbase.dll
C:\Windows\System32\USER32.dll
C:\Windows\System32\win32u.dll
C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.19041.488_none_ca04af081b815d21\COMCTL32.dll

Signature

Status: Signature verified.
Serial: 3300000266BD1580EFA75CD6D3000000000266
Thumbprint: A4341B9FD50FB9964283220A36A1EF6F6FAA7840
Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

Original Filename: RUNONCE.EXE.MUI
Product Name: Microsoft Windows Operating System
Company Name: Microsoft Corporation
File Version: 10.0.19041.1 (WinBuild.160101.0800)
Product Version: 10.0.19041.1
Language: English (United States)
Legal Copyright: Microsoft Corporation. All rights reserved.
Machine Type: 64-bit

File Scan

VirusTotal Detections: 0/75
VirusTotal Link: https://www.virustotal.com/gui/file/5994e053d58db049f4bab2117c51cc314d1553bc6793ff000b232b66f709b0d7/detection

Possible Misuse

The following table contains possible examples of runonce.exe being misused. While runonce.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source	Source File	Example	License
sigma	sysmon_suspicious_remote_thread.yml	`- '\runonce.exe'`	DRL 1.0
sigma	proc_creation_win_cobaltstrike_process_patterns.yml	`ParentImage\\|endswith: '\runonce.exe'`	DRL 1.0
sigma	proc_creation_win_cobaltstrike_process_patterns.yml	`ParentCommandLine\\|endswith: '\runonce.exe'`	DRL 1.0
sigma	proc_creation_win_susp_rundll32_setupapi_installhinfsection.yml	`description: setupapi.dll library provide InstallHinfSection function for processing INF files. INF file may contain instructions allowing to create values in the registry, modify files and install drivers. This technique could be used to obtain persistence via modifying one of Run or RunOnce registry keys, run process or use other DLLs chain calls (see references) InstallHinfSection function in setupapi.dll calls runonce.exe executable regardless of actual content of INF file.`	DRL 1.0
sigma	proc_creation_win_susp_rundll32_setupapi_installhinfsection.yml	`Image\\|endswith: '\runonce.exe'`	DRL 1.0
sigma	proc_creation_win_susp_runonce_execution.yml	`- '\runonce.exe'`	DRL 1.0
sigma	registry_event_runonce_persistence.yml	`description: Rule to detect the configuration of Run Once registry key. Configured payload can be run by runonce.exe /AlternateShellStartup`	DRL 1.0
LOLBAS	Runonce.yml	`Name: Runonce.exe`
LOLBAS	Runonce.yml	`- Command: Runonce.exe /AlternateShellStartup`
LOLBAS	Runonce.yml	`- Path: C:\Windows\System32\runonce.exe`
LOLBAS	Runonce.yml	`- Path: C:\Windows\SysWOW64\runonce.exe`

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