""ET TROJAN Observed Unk.PowerShell Loader CnC Domain in TLS SNI""

SID: 2029325

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_29, deployment Perimeter, signature_severity Major, updated_at 2020_01_29

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 15|internationalrule.com|00|"

Within:

PCRE:

Special Options:

  • fast_pattern

source