File or Directory Deletion Commandedit
This rule identifies the execution of commands that can be used to delete files and directories. Adversaries may delete files and directories on a host system, such as logs, browser history, or malware.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 60m
Searches indices from: now-119m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Defense Evasion
- Rule Type: BBR
- Data Source: Elastic Defend
Version: 2
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
process where host.os.type == "windows" and event.type == "start" and
(
(process.name: "rundll32.exe" and process.args: "*InetCpl.cpl,Clear*") or
(process.name: "reg.exe" and process.args:"delete") or
(
process.name: "cmd.exe" and process.args: ("*rmdir*", "*rm *", "rm") and
not process.args : (
"*\\AppData\\Local\\Microsoft\\OneDrive\\*",
"*\\AppData\\Local\\Temp\\DockerDesktop\\*",
"*\\AppData\\Local\\Temp\\Report.*",
"*\\AppData\\Local\\Temp\\*.PackageExtraction"
)
) or
(process.name: "powershell.exe" and process.args: ("*rmdir", "rm", "rd", "*Remove-Item*", "del", "*]::Delete(*"))
) and not user.id : "S-1-5-18"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Indicator Removal
- ID: T1070
- Reference URL: https://attack.mitre.org/techniques/T1070/
-
Sub-technique:
- Name: File Deletion
- ID: T1070.004
- Reference URL: https://attack.mitre.org/techniques/T1070/004/