IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Windows Network Enumeration
editWindows Network Enumeration
editIdentifies attempts to enumerate hosts in a network using the built-in Windows net.exe tool.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Discovery
Version: 5 (version history)
Added (Elastic Stack release): 7.11.0
Last modified (Elastic Stack release): 8.2.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guide
edit## Config If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
Rule query
editprocess where event.type in ("start", "process_started") and ((process.name : "net.exe" or process.pe.original_file_name == "net.exe") or ((process.name : "net1.exe" or process.pe.original_file_name == "net1.exe") and not process.parent.name : "net.exe")) and (process.args : "view" or (process.args : "time" and process.args : "\\\\*")) /* expand when ancestry is available and not descendant of [process where event.type == ("start", "process_started") and process.name : "cmd.exe" and ((process.parent.name : "userinit.exe") or (process.parent.name : "gpscript.exe") or (process.parent.name : "explorer.exe" and process.args : "C:\\*\\Start Menu\\Programs\\Startup\\*.bat*"))] */
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Remote System Discovery
- ID: T1018
- Reference URL: https://attack.mitre.org/techniques/T1018/
Rule version history
edit- Version 5 (8.2.0 release)
-
- Formatting only
- Version 4 (7.15.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and ((process.name : "net.exe" or process.pe.original_file_name == "net.exe") or ((process.name : "net1.exe" or process.pe.original_file_name == "net1.exe") and not process.parent.name : "net.exe")) and (process.args : "view" or (process.args : "time" and process.args : "\\\\*")) /* expand when ancestory is available and not descendant of [process where event.type == ("start", "process_started") and process.name : "cmd.exe" and ((process.parent.name : "userinit.exe") or (process.parent.name : "gpscript.exe") or (process.parent.name : "explorer.exe" and process.args : "C:\\*\\Start Menu\\Programs\\Startup\\*.bat*"))] */
-
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only