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Elastic Docs ›Elastic Security Solution [8.2] ›Detections and alerts ›Prebuilt rule reference

Potential Credential Access via Windows Utilities

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Potential Credential Access via Windows Utilities

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Identifies the execution of known Windows utilities often abused to dump LSASS memory or the Active Directory database (NTDS.dit) in preparation for credential access.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*
  • logs-windows.*

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
  • Windows
  • Threat Detection
  • Credential Access

Version: 6 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 8.2.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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## Config

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.

Rule query

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process where event.type in ("start", "process_started") and /* update
here with any new lolbas with dump capability */
(process.pe.original_file_name == "procdump" and process.args : "-ma")
or (process.name : "ProcessDump.exe" and not process.parent.executable
regex~ """C:\\Program Files( \(x86\))?\\Cisco Systems\\.*""") or
(process.pe.original_file_name == "WriteMiniDump.exe" and not
process.parent.executable regex~ """C:\\Program Files(
\(x86\))?\\Steam\\.*""") or (process.pe.original_file_name ==
"RUNDLL32.EXE" and (process.args : "MiniDump*" or process.command_line
: "*comsvcs.dll*#24*")) or (process.pe.original_file_name ==
"RdrLeakDiag.exe" and process.args : "/fullmemdmp") or
(process.pe.original_file_name == "SqlDumper.exe" and process.args :
"0x01100*") or (process.pe.original_file_name == "TTTracer.exe" and
process.args : "-dumpFull" and process.args : "-attach") or
(process.pe.original_file_name == "ntdsutil.exe" and process.args :
"create*full*") or (process.pe.original_file_name == "diskshadow.exe"
and process.args : "/s")

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 6 (8.2.0 release)
  • Formatting only
Version 5 (7.16.0 release)
  • Formatting only
Version 4 (7.14.0 release)

  • Updated query, changed from:

    process where event.type in ("start", "process_started") and /* update
here with any new lolbas with dump capability */
(process.pe.original_file_name == "procdump" and process.args : "-ma")
or (process.name : "ProcessDump.exe" and not process.parent.executable
: "C:\\Program Files*\\Cisco Systems\\*.exe") or
(process.pe.original_file_name == "WriteMiniDump.exe" and not
process.parent.executable : "C:\\Program Files*\\Steam\\*.exe") or
(process.pe.original_file_name == "RUNDLL32.EXE" and (process.args :
"MiniDump*" or process.command_line : "*comsvcs.dll*#24*")) or
(process.pe.original_file_name == "RdrLeakDiag.exe" and process.args :
"/fullmemdmp") or (process.pe.original_file_name == "SqlDumper.exe"
and process.args : "0x01100*") or (process.pe.original_file_name ==
"TTTracer.exe" and process.args : "-dumpFull" and process.args :
"-attach") or (process.pe.original_file_name == "ntdsutil.exe" and
process.args : "create*full*") or (process.pe.original_file_name ==
"diskshadow.exe" and process.args : "/s")
Version 3 (7.12.0 release)
  • Formatting only
Version 2 (7.11.2 release)
  • Formatting only
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