""ET TROJAN Dridex DL Pattern Feb 18 2016""

SID: 2022549

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2016_02_19, updated_at 2019_08_15

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: ".exe?."

  • Value: "MSIE 7.0|3b| Windows NT"

  • Value: !"Referer|3a|"

Within:

PCRE: "/.exe\?.\d+$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

source