You are a security analyst working for Alpha Security Services. Recently, one of your clients, Beta Financial Services, has encountered some suspicious activity on their network. As part of their security measures, they have collected detailed log files from their systems and have sent them to your team for analysis.

Among these files, there is a Sysmon log that seems particularly concerning. It appears to contain evidence of unusual and potentially malicious behavior. Your task is to thoroughly analyze this log file and identify any signs of compromise or malicious activity. Which common Windows program is exploited to create a malicious file?