From netlab.360.com
Netlab 360 have setup honeypots to study the impact of the latest log4j critical vulnerability. They established that the number of attack sessions rose rapidly in the next few days after the vulnerability was exposed. On December 18, the day with the highest number of attack sessions so fare, there were over 28,000 attack sessions in one day. starting on December 13, there were also combined attacks of this vulnerability with other vulnerabilities (Apache Flink, Hadoop, Apache Struts2 vulnerability, etc.).