""ET TROJAN Win32/Milum CnC""

SID: 2029739

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_03_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_03_25

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "|0d 0a 0d 0a|md="

  • Value: "POST"

  • Value: ".php"

  • Value: "md=" Depth: 3

  • Value: "&nk="

  • Value: "&val="

  • Value: "|0d 0a|Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

Within:

PCRE: "/&val=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/P"

Special Options:

  • fast_pattern

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

source