## Overview
After gaining initial access through phishing, the threat actors moved to deploy and execute the REvil ransomware. This report delves into the methods used for malware deployment and subsequent execution.

## Deployment Tactics
- **Lateral Movement**: Exploited internal network vulnerabilities to propagate.
- **Privilege Escalation**: Used stolen credentials to gain administrative access.

## Execution Details
- **Payload Delivery**: The ransomware was delivered via script execution on compromised systems.
- **Encryption Process**: Files were encrypted using strong encryption algorithms, making recovery without payment challenging.

## Mitigation Strategies
- **Network Segmentation**: Implement robust segmentation to contain threats.
- **Access Controls**: Regularly update and audit user access rights.

Understanding these techniques is crucial for tracing the Bitcoin ransom payments and analyzing financial transactions, as detailed in the subsequent alert.