Suspicious Kernel Dump Using Dtrace

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

Detects suspicious way to dump the kernel on Windows systems using dtrace.exe, which is available on Windows systems since Windows 10 19H1

MITRE ATT&CK coverage

Tactic	Techniques
Discovery	`T1082` System Information Discovery

Event coverage

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

Stages and Predicates

Stage 1: `1 of selection_plain`

CommandLine|contains: 'lkd(0)'
Image|endswith: '\dtrace.exe'

Stage 2: `1 of selection_obfuscated`

CommandLine|contains: 'lkd('
CommandLine|contains: 'syscall:::return'

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.

Field	Kind	Values
`CommandLine`	match	`lkd(` `lkd(0)` `syscall:::return`
`Image`	ends_with	`\dtrace.exe`