""ET TROJAN Win32/ASPC Bot CnC Checkin M3""

SID: 2024625

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_30, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2017_09_13

Reference:

  • md5

  • f392c55f636e93f4b72f1a2aa5022730

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: ".php?string="

  • Value: "User-Agent|3a 20|Mozilla/"

  • Value: !"Referer|3a|"

  • Value: "string=" Depth: 7

Within:

PCRE: "/.php\?string=[a-zA-Z0-9+=]+$/Ui"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_client_body

source