""ET TROJAN Common Upatre Header Structure 3""

SID: 2020295

Revision: 4

Class Type: trojan-activity

Metadata: created_at 2015_01_23, performance_impact Significant, updated_at 2024_04_08

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "GET"

  • Value: "Accept|3a 20|text/,|20|application/|0d 0a|User-Agent|3a 20|" Depth: 43

  • Value: !"Mozilla"

  • Value: !"Taitus"

Within: 7

PCRE: "/^Accept\x3a\x20text\/*,\x20application\/*\r\nUser-Agent\x3a\x20[^\r\n]+\r\n(?:Pragma|Cache-Control)\x3a\x20no-cache\r\nConnection\x3a Keep-Alive\r\nHost\x3a[^\r\n]+?\r\n(?:\r\n)?$/H"

Special Options:

  • http_method

  • http_header

  • http_header

  • http_header

source