""ET MALWARE Observed Win32/Foniad Domain (aclassigned .info in TLS SNI)""
SID: 2025489
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_04_13, deployment Perimeter, malware_family Foniad, performance_impact Moderate, signature_severity Major, updated_at 2019_08_14
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
- Value: "|00 00 10|aclassigned.info|00|"
Within:
PCRE:
Special Options:
- fast_pattern