LSASS Process Memory Dump Creation Via Taskmgr.EXE

 1title: LSASS Process Memory Dump Creation Via Taskmgr.EXE
 2id: 69ca12af-119d-44ed-b50f-a47af0ebc364
 3status: experimental
 4description: Detects the creation of an "lsass.dmp" file by the taskmgr process. This indicates a manual dumping of the LSASS.exe process memory using Windows Task Manager.
 5author: Swachchhanda Shrawan Poudel
 6date: 2023/10/19
 7references:
 8    - https://github.com/redcanaryco/atomic-red-team/blob/987e3ca988ae3cff4b9f6e388c139c05bf44bbb8/atomics/T1003.001/T1003.001.md#L1
 9tags:
10    - attack.credential_access
11    - attack.t1003.001
12logsource:
13    category: file_event
14    product: windows
15detection:
16    selection:
17        Image|endswith:
18            - ':\Windows\system32\taskmgr.exe'
19            - ':\Windows\SysWOW64\taskmgr.exe'
20        TargetFilename|contains|all:
21            - '\AppData\Local\Temp\'
22            - '\lsass'
23            - '.DMP'
24    condition: selection
25falsepositives:
26    - Rare case of troubleshooting by an administrator or support that has to be investigated regardless
27level: high