""ET TROJAN Observed Scattered Spider Domain (victimname-servicedesk .com in TLS SNI)""

SID: 2049239

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_16, deployment Perimeter, signature_severity Major, updated_at 2023_11_16

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: "victimname-servicedesk.com"

Within: 1

PCRE: "/^(?:\x00\x1a|.\x2e)victimname-servicedesk.com/R"

Special Options:

source