""ET INFO Observed Avalanche / Lavina Pulse Domain (avl .team in TLS SNI)""

SID: 2044715

Revision: 1

Class Type: misc-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_21, deployment Perimeter, signature_severity Informational, updated_at 2023_03_21

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

  • Value: "|16|"

  • Value: "|01|"

  • Value: "|00 00|"

  • Value: "|00|"

  • Value: "avl.team"

Within: 1

PCRE: "/^(?:\x00\x08|.\x2e)avl.team/R"

Special Options:

source