alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN ELF/Emptiness v1.1 DNS Flood Command Inbound"; flow:established,from_server; content:"LmRucy"; depth:6; fast_pattern; pcre:"/^(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{2}==|[A-Z0-9+/]{3}=|[A-Z0-9+/]{4})$/i"; metadata: former_category TROJAN; reference:url,blog.netlab.360.com/emptiness-a-new-evolving-botnet/; classtype:trojan-activity; sid:2027841; rev:1; metadata:affected_product Linux, tag DDoS?, created_at 2019_08_09, malware_family Emptiness, updated_at 2019_08_09;)

Added 2019-08-09 17:52:28 UTC


Topic revision: r1 - 2019-08-09 - TWikiGuest
 
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