""ET TROJAN Observed Malicious SSL Cert (Turla/APT34 CnC Domain)""

SID: 2027670

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_07_03, deployment Perimeter, malware_family Turla, malware_family APT34, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2019_07_03, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

  • md5

  • 2a8672b0fd29dc3b6f49935691b648bc

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|55 04 03|"

  • Value: "|22|microsoft.updatemeltdownkb7234.com"

Within: 35

PCRE:

Special Options:

  • fast_pattern

source