alert dns $HOME_NET any -> any any (msg:"ET MALWARE STOLENPENCIL CnC Domain in DNS Lookup"; dns.query; content:"pqexport.com"; nocase; fast_pattern; endswith; reference:url,asert.arbornetworks.com/stolen-pencil-campaign-targets-academia/; classtype:command-and-control; sid:2026695; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_05, deployment Perimeter, malware_family StolenPencil, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_16;)