SigmaHQ/rules/windows/sysmon/sysmon_password_dumper_lsass.yml

title: Password Dumper Remote Thread in LSASS 
description: Detects password dumper activity by monitoring remote thread creation EventID 8 in combination with the lsass.exe process as TargetImage. The process in field Process is the malicious program. A single execution can lead to hundrets of events.
reference: Internal research
detection:
    selection:
        EventLog: Microsoft-Windows-Sysmon/Operational
        EventID: 8
        TargetProcess: 'C:\Windows\System32\lsass.exe'
        StartModule: ''
    condition: selection
falsepositives:
    - unknown
level: high
LSASS Remote Thread Update 2017-02-12 15:33:09 +00:00			`title: Password Dumper Remote Thread in LSASS`
			`description: Detects password dumper activity by monitoring remote thread creation EventID 8 in combination with the lsass.exe process as TargetImage. The process in field Process is the malicious program. A single execution can lead to hundrets of events.`
			`reference: Internal research`
New rules and cleanup 2017-02-12 14:50:39 +00:00			`detection:`
			`selection:`
Rule review and cleanup * removed unnecessary one element lists from definitions * converted some lists of one element maps to maps because the resulting OR linkage would cause wrong result. 2017-02-15 22:53:08 +00:00			`EventLog: Microsoft-Windows-Sysmon/Operational`
			`EventID: 8`
			`TargetProcess: 'C:\Windows\System32\lsass.exe'`
			`StartModule: ''`
New rules and cleanup 2017-02-12 14:50:39 +00:00			`condition: selection`
			`falsepositives:`
			`- unknown`
Levels to low, medium, high, critical 2017-02-16 17:02:26 +00:00			`level: high`
LSASS Remote Thread Update 2017-02-12 15:33:09 +00:00