""ET TROJAN Observed SSV Agent CnC Domain (gitcloudcache .com in TLS SNI)""

SID: 2033653

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_08_03, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_03_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: "gitcloudcache.com"

Within: 1

PCRE: "/^(?:\x00\x11|.\x2e)gitcloudcache.com/R"

Special Options:

source