""ET TROJAN Potential Dridex.Maldoc Minimal Executable Request""

SID: 2020826

Revision: 7

Class Type: trojan-activity

Metadata: created_at 2015_04_01, performance_impact Moderate, updated_at 2024_04_08

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: !"Mozilla/"

  • Value: !"Referer|3A 20|"

  • Value: !"Accept"

  • Value: !"MstarUpdate"

  • Value: "User-Agent|3a 20|" Depth: 12

  • Value: !".bitdefender.com|0d 0a|"

  • Value: !".homestead.com|0d 0a|"

Within:

PCRE: "/^User-Agent\x3A\x20[a-z\x20]{2,30}\r\nHost\x3A[^\r\n]+\r\n(?:\r\n)?$/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source