Uncommon Network Share Discovery via Net View (via process_creation)

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1135Network Share Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects use of net view to enumerate remote hosts and their shared folders, a discovery step adversaries run to map reachable systems and data before lateral movement and collection. Network share discovery supports the hands-on-keyboard reconnaissance profiled in the Red Canary Threat Detection Report. Because interactive share enumeration across hosts is uncommon on typical endpoints, it is a useful indicator of an operator orienting inside the network.

Reporting behind it

Related detections9 linkedT1135 — drag to rearrange

Malicious Network Share Discovery And/or Connection via Commandline (via process_creation)

Suspicious Enabling of Network Discovery Firewall Rules via PowerShell

NetScan Share Enumeration Write Access Check

Suspicious Network Share Enumeration via SharpShares

Suspicious SharpShares Network Share Enumeration Tool Execution

SharpHound Enumeration via SMB Named Pipes (via security)

Windows: Explorer opened from cmd.exe/powershell using shell:MyComputerFolder shortcut

Windows Process Creation: Advanced Port Scanner PUA Execution via /portable /lng

Windows Process Creation: SharpView.exe with Recon/Domain Discovery Cmdlets

Uncommon Network Share Discovery via Net View (via process_creation)

Pivot detection · T1135 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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