This indicates an attack attempt to exploit a system through the Jexboss Toolkit.
Jexboss is a tool used to exploit vulnerabilities in JBoss Application Server and other Java related platforms. An attacker may use the tool to identify that your system is vulnerable and perform further attacks based on its findings.
JBoss Application Servers and other Java related platforms
System Compromise: Remote attackers can gain control of vulnerable systems.
Monitor the traffic from that network for any suspicious activity.