This indicates an attempt to use SJavaWebManage JSP Webshell.
A web shell is a malicious script, acting as a backdoor, that can be uploaded to a web server to enable remote administration of the machine. Web shells are often installed by attackers through web application vulnerabilities or configuration weaknesses.
Any compromised server
System Compromise: Remote attacker can gain control of vulnerable systems.
Remove the malicious JSP file from the server.