""ET TROJAN Observed Malicious SSL Cert (Lazarus APT MalDoc 2020-11-30)""

SID: 2031240

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 2020_11_30, deployment Perimeter, malware_family Maldoc, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_11_30, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

  • md5

  • 1e0d96c551ca31a4055491edc17ce2dd

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: "|13|filestream.download"

Within: 20

PCRE:

Special Options:

  • fast_pattern

source