""ET INFO Observed External IP Lookup Domain in TLS SNI (api .myip .com)""

SID: 2042969

Revision: 3

Class Type: bad-unknown

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2020_10_29, deployment Perimeter, signature_severity Informational, updated_at 2022_12_20, former_sid 2845225

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 0c|api.myip.com|00|"

Within:

PCRE:

Special Options:

  • fast_pattern

source