Disable Administrative Share Creation at Startup

Severity: medium
Author: frack113
Source: upstream

Administrative shares are hidden network shares created by Microsoft Windows NT operating systems that grant system administrators remote access to every disk volume on a network-connected system

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1070.005` Indicator Removal: Network Share Connection Removal

Event coverage

Provider	Event ID	Title
Sysmon	13	RegistryEvent (Value Set)

Stages and Predicates

Stage 1: `selection`

or:
TargetObject|endswith: '\AutoShareServer'
TargetObject|endswith: '\AutoShareWks'
Details: 'DWORD (0x00000000)'
TargetObject|contains: '\Services\LanmanServer\Parameters\'

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.