## Overview
Following the spear phishing attempt, a malicious payload was executed on compromised systems. This payload is designed to establish a foothold within the target network.

## Technical Details
- **Payload Analysis**: The payload is a custom-built malware designed to evade traditional antivirus systems.
- **Execution Method**: Once opened, the malicious attachment exploits vulnerabilities in outdated software to execute the payload.

## Recommendations
- **Patch Management**: Regular updates and patching of software to mitigate exploitation risks.
- **Behavioral Monitoring**: Deploy behavioral monitoring to detect unusual activity indicative of malware execution.