Suspicious Winpty Agent Spawned by Net Monitor Employee Monitoring Process

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1219Remote Access Tools
Exfiltration
Impact

What it detects

This rule detects winpty-agent.exe being spawned by lsa.exe, the Net Monitor for Employees process, a lineage observed in ransomware operations that abused employee-monitoring software for interactive command execution. The winpty pseudo-terminal helper launched from a monitoring agent provides the actor a hands-on shell channel. This parent-child relationship is anomalous and indicates the monitoring tool is being weaponized for hands-on-keyboard activity.

Reporting behind it

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Suspicious Winpty Agent Spawned by Net Monitor Employee Monitoring Process

Pivot detection · T1219 · 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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