Attempted Private Key Access
editAttempted Private Key Access
editAttackers may try to access private keys, e.g. ssh, in order to gain further authenticated access to the environment.
Rule type: eql
Rule indices:
- logs-endpoint.events.process-*
- logs-windows.sysmon_operational-*
- endgame-*
- logs-system.security*
- winlogbeat-*
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: Credential Access
- Data Source: Elastic Defend
- Rule Type: BBR
- Data Source: Sysmon
- Data Source: Elastic Endgame
- Data Source: System
Version: 106
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "windows" and event.type == "start" and
process.args : ("*.pem *", "*.pem", "*.id_rsa*") and
not process.args: ("--tls-cert", "--ssl-cert") and
not process.executable : (
"?:\\ProgramData\\Logishrd\\LogiOptions\\Software\\*\\LogiLuUpdater.exe",
"?:\\Program Files\\Elastic\\Agent\\data\\*\\osqueryd.exe",
"?:\\Program Files\\Guardicore\\gc-controller.exe",
"?:\\Program Files\\Guardicore\\gc-deception-agent.exe",
"?:\\Program Files\\Guardicore\\gc-detection-agent.exe",
"?:\\Program Files\\Guardicore\\gc-enforcement-agent.exe",
"?:\\Program Files\\Guardicore\\gc-guest-agent.exe",
"?:\\Program Files\\Logi\\LogiBolt\\LogiBoltUpdater.exe",
"?:\\Program Files (x86)\\Schneider Electric EcoStruxure\\Building Operation 5.0\\Device Administrator\\Python\\python.exe",
"?:\\Program Files\\Splunk\\bin\\openssl.exe",
"?:\\Program Files\\SplunkUniversalForwarder\\bin\\openssl.exe",
"?:\\Users\\*\\AppData\\Local\\Logi\\LogiBolt\\LogiBoltUpdater.exe",
"?:\\Windows\\system32\\icacls.exe",
"?:\\Windows\\System32\\OpenSSH\\*"
)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Unsecured Credentials
- ID: T1552
- Reference URL: https://attack.mitre.org/techniques/T1552/
-
Sub-technique:
- Name: Private Keys
- ID: T1552.004
- Reference URL: https://attack.mitre.org/techniques/T1552/004/