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WebProxy Settings Modification
editWebProxy Settings Modificationedit
Identifies the use of the built-in networksetup command to configure webproxy settings. This may indicate an attempt to hijack web browser traffic for credential access via traffic sniffing or redirection.
Rule type: query
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
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
References:
Tags:
- Elastic
- Host
- macOS
- Threat Detection
- Credential Access
Version: 100 (version history)
Added (Elastic Stack release): 7.12.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
Legitimate WebProxy Settings Modification
Rule queryedit
event.category : process and event.type : start and process.name : networksetup and process.args : (("-setwebproxy" or "-setsecurewebproxy" or "-setautoproxyurl") and not (Bluetooth or off)) and not process.parent.executable : ("/Library/PrivilegedHelperTools/com.80pct.FreedomHelper" or "/Applications/Fiddler Everywhere.app/Contents/Resources/app/out/WebServer/Fiddler.WebUi" or "/usr/libexec/xpcproxy")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Steal Web Session Cookie
- ID: T1539
- Reference URL: https://attack.mitre.org/techniques/T1539/
Rule version historyedit
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 3 (8.4.0 release)
-
- Formatting only
- Version 2 (7.13.0 release)
-
-
Updated query, changed from:
event.category:process and event.type:start and process.name:networksetup and process.args:("-setwebproxy" or "-setsecurewebproxy" or "-setautoproxyurl")
-