Potential Privacy Control Bypass via Localhost Secure Copyedit
Identifies use of the Secure Copy Protocol (SCP) to copy files locally by abusing the auto addition of the Secure Shell Daemon (sshd) to the authorized application list for Full Disk Access. This may indicate attempts to bypass macOS privacy controls to access sensitive files.
Rule type: eql
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: high
Risk score: 73
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
- Privilege Escalation
- Defense Evasion
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
Investigation guideedit
Rule queryedit
process where event.type in ("start", "process_started") and process.name:"scp" and process.args:"StrictHostKeyChecking=no" and process.command_line:("scp *localhost:/*", "scp *127.0.0.1:/*") and not process.args:"vagrant@*127.0.0.1*"
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Abuse Elevation Control Mechanism
- ID: T1548
- Reference URL: https://attack.mitre.org/techniques/T1548/
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Abuse Elevation Control Mechanism
- ID: T1548
- Reference URL: https://attack.mitre.org/techniques/T1548/
Rule version historyedit
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 5 (8.4.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started") and process.name:"scp" and process.args:"StrictHostKeyChecking=no" and process.command_line:("scp *localhost:/*", "scp *127.0.0.1:/*") and not process.args:"vagrant@*127.0.0.1*"
-
- Version 3 (8.3.0 release)
-
- Formatting only
- Version 2 (8.2.0 release)
-
- Formatting only