NTDS Exfiltration Filename Patterns

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

Detects creation of files with specific name patterns seen used in various tools that export the NTDS.DIT for exfiltration.

MITRE ATT&CK coverage

Tactic	Techniques
Credential Access	`T1003.003` OS Credential Dumping: NTDS

Event coverage

Provider	Event ID	Title
Sysmon	11	FileCreate

Stages and Predicates

Stage 1: `selection`

or:
TargetFilename|endswith: .ntds.cleartext
TargetFilename|endswith: '\All.cab'

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.