PUA - System Informer Execution

 1title: PUA - System Informer Execution
 2id: 5722dff1-4bdd-4949-86ab-fbaf707e767a
 3related:
 4    - id: 811e0002-b13b-4a15-9d00-a613fce66e42
 5      type: similar
 6status: test
 7description: Detects the execution of System Informer, a task manager tool to view and manipulate processes, kernel options and other low level operations
 8references:
 9    - https://github.com/winsiderss/systeminformer
10author: Florian Roth (Nextron Systems)
11date: 2023/05/08
12tags:
13    - attack.persistence
14    - attack.privilege_escalation
15    - attack.discovery
16    - attack.defense_evasion
17    - attack.t1082
18    - attack.t1564
19    - attack.t1543
20logsource:
21    category: process_creation
22    product: windows
23detection:
24    selection_image:
25        - Image|endswith: '\SystemInformer.exe'
26        - OriginalFileName: 'SystemInformer.exe'
27        - Description: 'System Informer'
28        - Product: 'System Informer'
29    selection_hashes:
30        Hashes|contains:
31            # Note: add other hashes as needed
32            # 3.0.11077.6550
33            - 'MD5=19426363A37C03C3ED6FEDF57B6696EC'
34            - 'SHA1=8B12C6DA8FAC0D5E8AB999C31E5EA04AF32D53DC'
35            - 'SHA256=8EE9D84DE50803545937A63C686822388A3338497CDDB660D5D69CF68B68F287'
36            - 'IMPHASH=B68908ADAEB5D662F87F2528AF318F12'
37    selection_hash_values:
38        - md5: '19426363A37C03C3ED6FEDF57B6696EC'
39        - sha1: '8B12C6DA8FAC0D5E8AB999C31E5EA04AF32D53DC'
40        - sha256: '8EE9D84DE50803545937A63C686822388A3338497CDDB660D5D69CF68B68F287'
41        - Imphash: 'B68908ADAEB5D662F87F2528AF318F12'
42    condition: 1 of selection_*
43falsepositives:
44    - System Informer is regularly used legitimately by system administrators or developers. Apply additional filters accordingly
45level: medium