""ET TROJAN Observed Malicious SSL Cert for IRS Credential Phish Domain (supportmicrohere .com)""

SID: 2036360

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 2022_04_25, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_04_25, 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: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "supportmicrohere.com"

Within: 8

PCRE: "/^(?:\x14|\x2e)supportmicrohere.com/R"

Special Options:

source