""ET MALWARE W32/OpenTrio User-Agent (Open3)""

SID: 2014190

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2012_02_06, updated_at 2019_08_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3A 20|Open3"

Within:

PCRE:

Special Options:

  • http_header

source