""ET TROJAN ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Vawtrak CnC)""

SID: 2023496

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2016_11_10, deployment Perimeter, former_category MALWARE, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_03_13, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

• Link

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

• Value: "|09 00|"

• Value: "|06 03 55 04 06|"

• Value: "|02|"

• Value: "|06 03 55 04 07|"

• Value: "|0c|Default City"

• Value: "|06 03 55 04 0a|"

• Value: "|13|Default Company Ltd"

• Value: !"|06 03 55 04 03|"

Within: 20

PCRE: "/^(?P[a-z])(?P=letter)[01]/R"

Special Options:

• fast_pattern

source