""ET TROJAN SpyAgent C&C Activity (Request)""

SID: 2034573

Revision: 1

Class Type: attempted-admin

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_12_01, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_12_01

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: "update.php?id="

  • Value: "&stat="

  • Value: "Connection|3a 20|Keep-Alive|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/&stat=[0-9a-zA-Z]{32}/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

  • http_header

source