""ET TROJAN Malicious SSL Certificate detected (PyXie)""

SID: 2029090

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_and_Server, created_at 2019_12_02, deployment Perimeter, malware_family PyXie, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2019_12_02, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|0b|floppys.bit"

Within: 12

PCRE:

Special Options:

  • fast_pattern

source