""ET TROJAN EMAIL SSL Cert APT1""

SID: 2016464

Revision: 4

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2013_02_22, deployment Perimeter, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_03_21

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|2f 09 dd e0 ff 81 b7 6c bf 2f 17 92 0c d8 bd 57|"

  • Value: "|55 04 03|"

  • Value: "|05|EMAIL"

Within: 6

PCRE:

Special Options:

source