HackTool - HandleKatz Duplicating LSASS Handle

 1title: HackTool - HandleKatz Duplicating LSASS Handle
 2id: b1bd3a59-c1fd-4860-9f40-4dd161a7d1f5
 3status: test
 4description: Detects HandleKatz opening LSASS to duplicate its handle to later dump the memory without opening any new handles
 5references:
 6    - https://github.com/codewhitesec/HandleKatz
 7author: Bhabesh Raj (rule), @thefLinkk
 8date: 2022-06-27
 9modified: 2023-11-28
10tags:
11    - attack.execution
12    - attack.t1106
13    - attack.defense-evasion
14    - attack.t1003.001
15logsource:
16    category: process_access
17    product: windows
18detection:
19    selection:
20        TargetImage|endswith: '\lsass.exe' # Theoretically, can be any benign process holding handle to LSASS
21        GrantedAccess: '0x1440' # Only PROCESS_DUP_HANDLE, PROCESS_QUERY_LIMITED_INFORMATION, PROCESS_QUERY_INFORMATION
22        # Example: C:\Windows\SYSTEM32\ntdll.dll+9d234\|UNKNOWN(00000000001C119B)
23        CallTrace|startswith: 'C:\Windows\System32\ntdll.dll+'
24        CallTrace|contains: '|UNKNOWN('
25        CallTrace|endswith: ')'
26    condition: selection
27falsepositives:
28    - Unknown
29level: high