## Overview
After the detection of suspicious access to the transaction switch, further analysis revealed that the unauthorized activity likely originated from a compromised employee account. The account was used to exploit a vulnerability in the switch's authentication module.

## Technical Details
- **Vulnerability Exploited:** A weak password policy enabled brute force attacks.
- **Entry Point:** External IP address traced to a location in Eastern Europe.
- **Tools Used:** Custom scripts were deployed to maintain low-profile access.

## Recommendations
- **Immediate Action:** Revise and enforce a robust password policy.
- **Monitoring:** Enhance logging on transaction switch access points.

## Next Steps
Prepare for potential malicious code execution, as APT38 typically follows initial access with malware deployment.