""ET CURRENT_EVENTS Underminer EK Key POST""

SID: 2026421

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_09_27, deployment Perimeter, signature_severity Major, tag Underminer_EK, updated_at 2018_09_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: "/"

  • Value: ".html"

  • Value: "/"

  • Value: ".html"

  • Value: "{|22|mode|22 3a|10,|22|key|22 3a 22|" Depth: 18

  • Value: "token=" Depth: 6

  • Value: "Content-Type|3a 20|text/plain|3b|charset=UTF-8"

Within: 5

PCRE: "/^Referer\x3a\x20[^\r\n]+(?![a-z]{26}|[0-9]{26})[a-z0-9]{26}.html/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_header

  • http_header

  • nocase

  • http_client_body

  • fast_pattern

  • http_cookie

  • http_header

source