""ET TROJAN ELF/Emptiness v2 XOR DNS Flood Command Inbound""
SID: 2027844
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Linux, created_at 2019_08_09, malware_family Emptiness, tag DDoS, updated_at 2019_08_09
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
- Value: "|fe d6 53 76 f0 7e fb|" Depth: 7
Within:
PCRE: "/^[\x20-\x7e\r\n]{0,13}[^\x20-\x7e\r\n]/"
Special Options:
- fast_pattern