alert dns $HOME_NET any -> any any (msg:"ET MALWARE KeyBoy DNS Lookup (www .eleven.mypop3.org)"; dns.query; content:"www.eleven.mypop3.org"; depth:21; nocase; endswith; fast_pattern; reference:url,citizenlab.org/2016/11/parliament-keyboy/; classtype:trojan-activity; sid:2023524; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_11_18, malware_family KeyBoy, confidence Medium, signature_severity Major, updated_at 2020_09_17;)