""ET TROJAN Malicious SSL certificate detected (OSX/Keydnap CnC)""

SID: 2022953

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_and_Server, created_at 2016_07_07, deployment Perimeter, former_category MALWARE, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, tag TROJAN_OSX_Keydnap, updated_at 2022_03_24, 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: "|55 04 03|"

  • Value: "|19|g5wcesdfjzne7255.onion.to"

Within: 26

PCRE:

Special Options:

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