alert http any any -> any 5000 (msg:"ET SCAN Hikvision DVR attempted Synology Recon Scan"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/webman/info.cgi?host="; fast_pattern; reference:url,isc.sans.edu/forums/diary/More+Device+Malware+This+is+why+your+DVR+attacked+my+Synology+Disk+Station+and+now+with+Bitcoin+Miner/17879; classtype:trojan-activity; sid:2018343; rev:4; metadata:created_at 2014_04_02, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_23;)