""ET TROJAN Observed SockRacket/KANDYKORN Domain (bitscrunnch .linkpc .net in TLS SNI)""

SID: 2049016

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_01, deployment Perimeter, signature_severity Major, updated_at 2023_11_01, reviewed_at 2023_12_13

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: "bitscrunnch.linkpc.net"

Within: 1

PCRE: "/^(?:\x00\x16|.\x2e)bitscrunnch.linkpc.net/R"

Special Options:

source