alert dns $HOME_NET any -> any any (msg:"ET MALWARE MSIL/BISKVIT DNS Lookup (secured-links .org)"; dns.query; content:"secured-links.org"; nocase; fast_pattern; endswith; reference:md5,02655131d4167f3be9b83b0eaa6609f7; reference:url,www.fortinet.com/blog/threat-research/russian-army-exhibition-decoy-leads-to-new-biskvit-malware.html; classtype:trojan-activity; sid:2026022; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_23, deployment Perimeter, malware_family BISKVIT, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_16;)