Rule History

alert tcp $HOME_NET any -> $EXTERNAL_NET [9530,9527,23] (msg:"ET EXPLOIT Attempted HiSilicon DVR/NVR/IPCam RCE (Outbound)"; flow:established,to_server; dsize:21; content:"|15 4f 70 65 6e 54 65 6c 6e 65 74 3a 4f 70 65 6e 4f 6e 63 65 00|"; reference:url,github.com/Snawoot/hisilicon-dvr-telnet/blob/master/hs-dvr-telnet.c; reference:url,habr.com/en/post/486856/; classtype:attempted-admin; sid:2030488; rev:1; metadata:affected_product IoT, attack_target Client_Endpoint, created_at 2020_07_09, deployment Perimeter, confidence High, signature_severity Major, updated_at 2020_07_09;)