PowerShell Get-Process LSASS

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

Detects a "Get-Process" cmdlet and it's aliases on lsass process, which is in almost all cases a sign of malicious activity

MITRE ATT&CK coverage

Tactic	Techniques
Credential Access	`T1552.004` Unsecured Credentials: Private Keys

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation
Security-Auditing	4688	A new process has been created.

Stages and Predicates

Stage 1: `selection`

or:
CommandLine|contains: 'Get-Process lsas'
CommandLine|contains: 'gps lsas'
CommandLine|contains: 'ps lsas'

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.