IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Execution of File Written or Modified by Microsoft Office
editExecution of File Written or Modified by Microsoft Office
editIdentifies an executable created by a Microsoft Office application and subsequently executed. These processes are often launched via scripts inside documents or during exploitation of MS Office applications.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
Severity: high
Risk score: 21
Runs every: 60m
Searches indices from: now-120m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Execution
Version: 4
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence with maxspan=2h
[file where event.type != "deletion" and file.extension : "exe" and
(process.name : "WINWORD.EXE" or
process.name : "EXCEL.EXE" or
process.name : "OUTLOOK.EXE" or
process.name : "POWERPNT.EXE" or
process.name : "eqnedt32.exe" or
process.name : "fltldr.exe" or
process.name : "MSPUB.EXE" or
process.name : "MSACCESS.EXE")
] by host.id, file.path
[process where event.type in ("start", "process_started")] by host.id, process.executable
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
-
Technique:
- Name: Phishing
- ID: T1566
- Reference URL: https://attack.mitre.org/techniques/T1566/
-
Sub-technique:
- Name: Spearphishing Attachment
- ID: T1566.001
- Reference URL: https://attack.mitre.org/techniques/T1566/001/
-
Sub-technique:
- Name: Spearphishing Link
- ID: T1566.002
- Reference URL: https://attack.mitre.org/techniques/T1566/002/