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Execution of Persistent Suspicious Program
editExecution of Persistent Suspicious Program
editIdentifies execution of suspicious persistent programs (scripts, rundll32, etc.) by looking at process lineage and command line usage.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.process-*
- logs-windows.sysmon_operational-*
- endgame-*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (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: Persistence
- Data Source: Elastic Endgame
- Data Source: Elastic Defend
- Data Source: Sysmon
Version: 207
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
edit/* userinit followed by explorer followed by early child process of explorer (unlikely to be launched interactively) within 1m */
sequence by host.id, user.name with maxspan=1m
[process where host.os.type == "windows" and event.type == "start" and process.name : "userinit.exe" and process.parent.name : "winlogon.exe"]
[process where host.os.type == "windows" and event.type == "start" and process.name : "explorer.exe"]
[process where host.os.type == "windows" and event.type == "start" and process.parent.name : "explorer.exe" and
/* add suspicious programs here */
process.pe.original_file_name in ("cscript.exe",
"wscript.exe",
"PowerShell.EXE",
"MSHTA.EXE",
"RUNDLL32.EXE",
"REGSVR32.EXE",
"RegAsm.exe",
"MSBuild.exe",
"InstallUtil.exe") and
/* add potential suspicious paths here */
process.args : ("C:\\Users\\*", "C:\\ProgramData\\*", "C:\\Windows\\Temp\\*", "C:\\Windows\\Tasks\\*", "C:\\PerfLogs\\*", "C:\\Intel\\*")
]
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Boot or Logon Autostart Execution
- ID: T1547
- Reference URL: https://attack.mitre.org/techniques/T1547/
-
Sub-technique:
- Name: Registry Run Keys / Startup Folder
- ID: T1547.001
- Reference URL: https://attack.mitre.org/techniques/T1547/001/