""ET TROJAN Observed Malicious FIN12 Related SSL Cert""

SID: 2034177

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_10_12, deployment Perimeter, malware_family Fin12, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2021_10_12

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: "|06 03 55 04 03|"

• Value: "OU=Delegated Licensor,KYP SDT LTD"

Within: 8

PCRE: "/^(?:\x21|\x2e)OU=Delegated Licensor,KYP SDT LTD/R"

Special Options:

source