86 lines
2.1 KiB
YAML
86 lines
2.1 KiB
YAML
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title: Generic Password Dumper Activity on LSASS
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author: Roberto Rodriguez, Teymur Kheirkhabarov, Dimitrios Slamaris, Mark Russinovich,
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Aleksey Potapov, oscd.community (update)
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date: 2019/11/01
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description: Detects process handle on LSASS process with certain access mask
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detection:
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SELECTION_1:
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ObjectName: '*\lsass.exe'
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SELECTION_2:
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EventID: 4656
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SELECTION_3:
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AccessMask:
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- '*0x40*'
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- '*0x1400*'
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- '*0x1000*'
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- '*0x100000*'
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- '*0x1410*'
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- '*0x1010*'
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- '*0x1438*'
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- '*0x143a*'
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- '*0x1418*'
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- '*0x1f0fff*'
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- '*0x1f1fff*'
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- '*0x1f2fff*'
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- '*0x1f3fff*'
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SELECTION_4:
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EventID: 4663
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SELECTION_5:
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AccessList:
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- '*4484*'
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- '*4416*'
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SELECTION_6:
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ProcessName:
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- '*\wmiprvse.exe'
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- '*\taskmgr.exe'
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- '*\procexp64.exe'
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- '*\procexp.exe'
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- '*\lsm.exe'
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- '*\csrss.exe'
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- '*\wininit.exe'
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- '*\vmtoolsd.exe'
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- '*\minionhost.exe'
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- '*\VsTskMgr.exe'
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- '*\thor64.exe'
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- '*\MicrosoftEdgeUpdate.exe'
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- '*\GamingServices.exe'
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- '*\svchost.exe'
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SELECTION_7:
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ProcessName:
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- C:\Windows\System32\\*
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- C:\Windows\SysWow64\\*
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- C:\Windows\SysNative\\*
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- C:\Program Files\\*
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- C:\Windows\Temp\asgard2-agent\\*
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SELECTION_8:
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ProcessName:
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- C:\Program Files*
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condition: (((SELECTION_1 and ((SELECTION_2 and SELECTION_3) or (SELECTION_4 and
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SELECTION_5))) and not (SELECTION_6 and SELECTION_7)) and not (SELECTION_8))
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falsepositives:
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- Legitimate software accessing LSASS process for legitimate reason; update the whitelist
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with it
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fields:
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- ComputerName
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- SubjectDomainName
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- SubjectUserName
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- ProcessName
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- ProcessID
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id: 4a1b6da0-d94f-4fc3-98fc-2d9cb9e5ee76
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level: high
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logsource:
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product: windows
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service: security
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modified: 2021/11/09
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references:
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- https://cyberwardog.blogspot.com/2017/03/chronicles-of-threat-hunter-hunting-for_22.html
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- https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment
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status: experimental
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tags:
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- attack.credential_access
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- attack.t1003
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- car.2019-04-004
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- attack.t1003.001
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ruletype: SIGMA
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