""ET TROJAN Observed Silver Implant Domain (raspoly .biz in TLS SNI)""

SID: 2032996

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_05_19, deployment Perimeter, signature_severity Major, updated_at 2021_05_19

Reference:

  • md5

  • 13816c3ba10d4a3ca4b4c97f248a985f

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 0b|raspoly.biz"

Within: 8

PCRE:

Special Options:

  • fast_pattern

source