""ET TROJAN HTTP Request to a *.su domain with direct request/fakebrowser (multiple families flowbit set)""

SID: 2018570

Revision: 3

Class Type: trojan-activity

Metadata: created_at 2014_06_17, performance_impact Significant, updated_at 2024_04_29

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: ".su"

  • Value: !"|0d 0a|Referer|3a|"

  • Value: !"|0d 0a|Accept-Language|3a|"

Within:

PCRE: "/^Host\x3a[^\r\n]+?.su(\x3a\d{1,5})?\r$/Hmi"

Special Options:

  • nocase

  • fast_pattern

  • http_header

  • http_header

  • http_header

source