IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Execution of Persistent Suspicious Program
edit
IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.
Execution 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.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Persistence
Version: 1
Added (Elastic Stack release): 7.11.0
Rule authors: Elastic
Rule license: Elastic License
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 event.type in
("start", "process_started") and process.name : "userinit.exe" and
process.parent.name : "winlogon.exe"] [process where event.type in
("start", "process_started") and process.name : "explorer.exe"]
[process where event.type in ("start", "process_started") 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\\*") ]
Threat mapping
editFramework: 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/