Esentutl.exe

Copies the source VBS file to the destination VBS file.

Use Copies files from A to B

esentutl.exe /y {PATH_ABSOLUTE:.source.vbs} /d {PATH_ABSOLUTE:.dest.vbs} /o

Context

user

Native

Copy

MITRE

T1105

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/

Copies the source EXE to an Alternate Data Stream (ADS) of the destination file.

Use Copy file and hide it in an alternate data stream as a defensive counter measure

esentutl.exe /y {PATH_ABSOLUTE:.exe} /d {PATH_ABSOLUTE}:file.exe /o

Context

user

Native

ADS

MITRE

T1564.004

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/

Copies the source Alternate Data Stream (ADS) to the destination EXE.

Use Extract hidden file within alternate data streams

esentutl.exe /y {PATH_ABSOLUTE}:file.exe /d {PATH_ABSOLUTE:.exe} /o

Context

user

Native

ADS

MITRE

T1564.004

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/

Copies the remote source EXE to the destination Alternate Data Stream (ADS) of the destination file.

Use Copy file and hide it in an alternate data stream as a defensive counter measure

esentutl.exe /y {PATH_SMB:.exe} /d {PATH_ABSOLUTE}:file.exe /o

Context

user

Native

ADS

MITRE

T1564.004

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/

Copies the source EXE to the destination EXE file

Use Use to copy files from one unc path to another

esentutl.exe /y {PATH_SMB:.source.exe} /d {PATH_SMB:.dest.exe} /o

Context

user

Native

Download

MITRE

T1564.004

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/

Copies a (locked) file using Volume Shadow Copy

Use Copy/extract a locked file such as the AD Database

esentutl.exe /y /vss c:\windows\ntds\ntds.dit /d {PATH_ABSOLUTE:.dit}

Context

admin

Native

Copy

MITRE

T1003.003

Detection

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_params.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_webcache.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/registry/registry_event/registry_event_esentutl_volume_shadow_copy_service_keys.yml

Sigma: github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_esentutl_sensitive_file_copy.yml

Splunk: github.com/splunk/security_content/blob/86a5b644a44240f01274c8b74d19a435c7dae66e/detections/endpoint/esentutl_sam_copy.yml

Elastic: github.com/elastic/detection-rules/blob/f6421d8c534f295518a2c945f530e8afc4c8ad1b/rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml

Refs

twitter.com/egre55/status/985994639202283520

dfironthemountain.wordpress.com/2018/12/06/locked-file-access-using-esentutl-exe/

twitter.com/bohops/status/1094810861095534592

lolbas-project.github.io/lolbas/Binaries/Esentutl/