PUA - System Informer Execution

Severity: medium
Author: Florian Roth (Nextron Systems)
Source: upstream

Detects the execution of System Informer, a task manager tool to view and manipulate processes, kernel options and other low level operations

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1543` Create or Modify System Process
Privilege Escalation	`T1543` Create or Modify System Process
Defense Evasion	`T1564` Hide Artifacts
Discovery	`T1082` System Information Discovery

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `selection`

or:
Description: 'System Informer'
Hashes|contains: 'IMPHASH=B68908ADAEB5D662F87F2528AF318F12'
Hashes|contains: 'MD5=19426363A37C03C3ED6FEDF57B6696EC'
Hashes|contains: 'SHA1=8B12C6DA8FAC0D5E8AB999C31E5EA04AF32D53DC'
Hashes|contains: 'SHA256=8EE9D84DE50803545937A63C686822388A3338497CDDB660D5D69CF68B68F287'
Image|endswith: '\SystemInformer.exe'
OriginalFileName: SystemInformer.exe
Product: 'System Informer'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.