""ET TROJAN Suspicious X-mailer Synapse""

SID: 2018936

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2014_08_14, updated_at 2014_08_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,587]

Flow: established,to_server

Contents:

  • Value: "produced by Synapse"

  • Value: "X|2d|mailer|3a 20|Synapse|20 2d 20|Pascal TCP|2f|IP library by Lukas Gebauer"

Within:

PCRE:

Special Options:

source