""ET TROJAN Observed Malicious SSL Cert (StrongPity CnC)""

SID: 2030416

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_and_Server, created_at 2020_07_01, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, tag StrongPity, updated_at 2020_07_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

• Link

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: "|00 B9 03 54 FD F4 FF 6D 68|"

Within: 8

PCRE:

Special Options:

• fast_pattern

source