""ET TROJAN Observed DeltaStealer Domain (deltastealer .xyz) in TLS SNI""

SID: 2045788

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_19, deployment Perimeter, malware_family DeltaStealer, performance_impact Low, signature_severity Major, updated_at 2023_05_19, reviewed_at 2023_08_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: "deltastealer.xyz"

Within: 1

PCRE: "/^(?:\x00\x10|.\x2e)deltastealer.xyz/R"

Special Options:

source