""ET MOBILE_MALWARE Observed Gigabud Domain (bc2k .xyz in TLS SNI)""

SID: 2050936

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Android, affected_product iOS, attack_target Mobile_Client, created_at 2024_02_16, deployment Perimeter, malware_family Gigabud, confidence High, signature_severity Critical, updated_at 2024_02_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: "bc2k.xyz"

Within: 1

PCRE: "/^(?:\x00\x08|.\x2e)bc2k.xyz/R"

Special Options:

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