Potential SAM Database Dump

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

Detects the creation of files that look like exports of the local SAM (Security Account Manager)

MITRE ATT&CK coverage

Tactic	Techniques
Credential Access	`T1003.002` OS Credential Dumping: Security Account Manager

Event coverage

Provider	Event ID	Title
Sysmon	11	FileCreate

Stages and Predicates

Stage 1: `selection`

or:
TargetFilename|endswith: ':\sam'
TargetFilename|endswith: '\AppData\Local\sam'
TargetFilename|endswith: '\AppData\Roaming\sam'
TargetFilename|endswith: '\Documents\SAM.export'
TargetFilename|endswith: '\Intel\sam'
TargetFilename|endswith: '\Perflogs\sam'
TargetFilename|endswith: '\ProgramData\sam'
TargetFilename|endswith: '\Temp\sam'
TargetFilename|endswith: '\Users\Public\sam'
TargetFilename|endswith: '\sam.hive'
TargetFilename|endswith: '\sam.sav'
TargetFilename|endswith: _ShadowSteal.zip
TargetFilename|contains: '\hive_sam_'
TargetFilename|contains: '\sam.backup'
TargetFilename|contains: '\sam.bck'
TargetFilename|contains: '\sam.export'
TargetFilename|contains: '\sam.save'
TargetFilename|contains: '\sam_backup'
TargetFilename|contains: '\~reg_sam.save'

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.