""ET MOBILE_MALWARE Observed Malicious SSL Cert (Android/FakeAdBlocker CnC)""

SID: 2033377

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Android, attack_target Client_and_Server, created_at 2021_07_21, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2021_07_21, 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: from_server,established

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|0d|offeranda.biz"

Within: 14

PCRE:

Special Options:

  • nocase

  • fast_pattern

source