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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:

https://lolbas-project.github.io/

Tags:

Elastic
Host
Windows
Threat Detection
Credential Access

Version: 5 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 7.16.0

Rule authors: Elastic

Rule license: Elastic License v2

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&CK^TM

Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
Technique:
- Name: OS Credential Dumping
- ID: T1003
- Reference URL: https://attack.mitre.org/techniques/T1003/

Rule version history

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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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