### Lateral Movement Threat Assessment

With the web shell in place, the threat actor is attempting lateral movement. This phase is critical as the adversary could potentially access sensitive data or compromise additional systems.

#### Observations:
- **Techniques Used**: The attacker appears to be using compromised credentials and leveraging Windows Management Instrumentation (WMI) for lateral movement.
- **Targets**: Initial attempts are targeting systems within the same domain, focusing on accounts with elevated privileges.

#### Indicators of Compromise (IOCs):
- Unauthorized login attempts from the Exchange server IP to other domain systems.
- Increased network traffic related to WMI commands.

#### Mitigation Strategies:
- Immediately isolate the affected systems to prevent further spread.
- Reset all passwords for accounts with elevated privileges.
- Enhance network segmentation to limit lateral movement capabilities.

Further monitoring and analysis are essential to understand the full scope of the threat and ensure comprehensive remediation.