Mshta Making Network Connectionsedit
Identifies Mshta.exe making outbound network connections. This may indicate adversarial activity, as Mshta is often leveraged by adversaries to execute malicious scripts and evade detection.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.sysmon_operational-*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-20m (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
- Data Source: Elastic Defend
- Data Source: Sysmon
Version: 106
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
sequence by process.entity_id with maxspan=10m
[process where host.os.type == "windows" and event.type == "start" and process.name : "mshta.exe" and
not process.parent.name : "Microsoft.ConfigurationManagement.exe" and
not (process.parent.executable : "C:\\Amazon\\Amazon Assistant\\amazonAssistantService.exe" or
process.parent.executable : "C:\\TeamViewer\\TeamViewer.exe") and
not process.args : "ADSelfService_Enroll.hta"]
[network where host.os.type == "windows" and process.name : "mshta.exe"]
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: System Binary Proxy Execution
- ID: T1218
- Reference URL: https://attack.mitre.org/techniques/T1218/
-
Sub-technique:
- Name: Mshta
- ID: T1218.005
- Reference URL: https://attack.mitre.org/techniques/T1218/005/