Usage of Renamed Sysinternals Tools - RegistrySet
Detects non-sysinternals tools setting the "accepteula" key which normally is set on sysinternals tool execution
Sigma rule (View on GitHub)
1title: Usage of Renamed Sysinternals Tools - RegistrySet
2id: 8023f872-3f1d-4301-a384-801889917ab4
3related:
4 - id: 25ffa65d-76d8-4da5-a832-3f2b0136e133
5 type: derived
6 - id: f50f3c09-557d-492d-81db-9064a8d4e211
7 type: similar
8status: test
9description: Detects non-sysinternals tools setting the "accepteula" key which normally is set on sysinternals tool execution
10references:
11 - Internal Research
12author: Nasreddine Bencherchali (Nextron Systems)
13date: 2022-08-24
14modified: 2023-08-17
15tags:
16 - attack.resource-development
17 - attack.t1588.002
18logsource:
19 product: windows
20 category: registry_set
21detection:
22 selection:
23 TargetObject|contains:
24 - '\PsExec'
25 - '\ProcDump'
26 - '\Handle'
27 - '\LiveKd'
28 - '\Process Explorer'
29 - '\PsLoglist'
30 - '\PsPasswd'
31 - '\Active Directory Explorer'
32 TargetObject|endswith: '\EulaAccepted'
33 filter_main_image_names:
34 Image|endswith:
35 - '\PsExec.exe'
36 - '\PsExec64.exe'
37 - '\procdump.exe'
38 - '\procdump64.exe'
39 - '\handle.exe'
40 - '\handle64.exe'
41 - '\livekd.exe'
42 - '\livekd64.exe'
43 - '\procexp.exe'
44 - '\procexp64.exe'
45 - '\psloglist.exe'
46 - '\psloglist64.exe'
47 - '\pspasswd.exe'
48 - '\pspasswd64.exe'
49 - '\ADExplorer.exe'
50 - '\ADExplorer64.exe'
51 filter_optional_null:
52 Image: null # Race condition with some logging tools
53 condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
54falsepositives:
55 - Unlikely
56level: high
References
Related rules
- PUA - Sysinternal Tool Execution - Registry
- PUA - Sysinternals Tools Execution - Registry
- Potential Execution of Sysinternals Tools
- Renamed SysInternals DebugView Execution
- Suspicious Execution Of Renamed Sysinternals Tools - Registry