""ET TROJAN Observed SSL/TLS Cert (Splashtop Remote Support)""

SID: 2033685

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_and_Server, created_at 2021_08_06, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

Protocol: tcp

Source Network: [$HOME_NET,$HTTP_SERVERS]

Source Port: any

Destination Network: any

Destination Port: any

Flow: from_server,established

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|16|Splashtop Inc. Self CA"

Within: 23

PCRE:

Special Options:

  • nocase

  • fast_pattern

source