This indicates that a system might be infected by Enfal Botnet.
Enfal is a malware that targets Windows platform. It contacts C&C servers via HTTP requests. A remote attacker can issue commands to the malware to download and install additional files.
Any unprotected Windows system is vulnerable
System Compromise: Remote attackers can gain control of vulnerable systems.
If required, the signature's action can be set to "Block".
Please use Anti-Virus software to scan and clean the infected computer.