""ET TROJAN Win32/MailerBot CnC Activity""

SID: 2029183

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 2019_12_18, deployment Perimeter, malware_family MailerBot, signature_severity Major, updated_at 2019_12_18

Reference:

  • md5

  • 33ae450f091a57c042e9dd99800ff6c8

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"

  • Value: "PHPSESSID=" Depth: 10

  • Value: "status=0" Depth: 8

  • Value: !"Referer|3a|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_cookie

  • http_client_body

  • fast_pattern

  • http_header

source