Potential Network Share Discovery
editPotential Network Share Discovery
editAdversaries may look for folders and drives shared on remote systems to identify sources of information to gather as a precursor for collection and identify potential systems of interest for Lateral Movement.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-windows.*
- logs-system.security*
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: Discovery
- Tactic: Collection
- Rule Type: BBR
- Data Source: System
Version: 106
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence by user.name, source.port, source.ip with maxspan=15s [file where event.action == "network-share-object-access-checked" and winlog.event_data.ShareName in ("\\\\*\\ADMIN$", "\\\\*\\C$") and source.ip != null and source.ip != "0.0.0.0" and source.ip != "::1" and source.ip != "::" and source.ip != "127.0.0.1"] [file where event.action == "network-share-object-access-checked" and winlog.event_data.ShareName in ("\\\\*\\ADMIN$", "\\\\*\\C$") and source.ip != null and source.ip != "0.0.0.0" and source.ip != "::1" and source.ip != "::" and source.ip != "127.0.0.1"]
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Network Share Discovery
- ID: T1135
- Reference URL: https://attack.mitre.org/techniques/T1135/
-
Tactic:
- Name: Collection
- ID: TA0009
- Reference URL: https://attack.mitre.org/tactics/TA0009/
-
Technique:
- Name: Data from Network Shared Drive
- ID: T1039
- Reference URL: https://attack.mitre.org/techniques/T1039/