""ET TROJAN SSL/TLS Certificate Observed (Quasar Related)""

SID: 2027381

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2019_05_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_05_24

Reference:

• Link

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: "|55 04 03|"

• Value: "|0e|MSGQ Server CA"

Within: 15

PCRE:

Special Options:

• fast_pattern

source