""ET CURRENT_EVENTS Observed Malicious SSL Cert (Office365 Phish Landing Page 2020-01-09)""

SID: 2029256

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_and_Server, created_at 2020_01_13, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_01_13, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

  • md5

  • 24a4c5f5033d7f399464df05a072012c

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: "|26|*.lakeshoreemployeetestingservices.com"

Within: 39

PCRE:

Special Options:

  • fast_pattern

source