alert dns $HOME_NET any -> any any (msg:"ET MALWARE Possible ShadowHammer DNS Lookup"; dns.query; content:"simplexoj.com"; nocase; endswith; reference:url,motherboard.vice.com/en_us/article/pan9wn/hackers-hijacked-asus-software-updates-to-install-backdoors-on-thousands-of-computers; classtype:trojan-activity; sid:2027111; rev:4; metadata:attack_target Client_Endpoint, created_at 2019_03_25, deployment Perimeter, malware_family ShadowHammer, performance_impact Low, confidence Medium, signature_severity Critical, updated_at 2020_09_17;)