""ET TROJAN W32/Emotet CnC Beacon 3""

SID: 2034459

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 2021_11_15, deployment Perimeter, malware_family Emotet, performance_impact Moderate, signature_severity Major, updated_at 2021_11_15

Reference:

  • md5

  • bc3532085a0b4febd9eed51aac2180d0

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: !"."

  • Value: !"&"

  • Value: !"-"

  • Value: "Cookie|3a 20 0d 0a|Host|3a 20|" Depth: 16

  • Value: "|0d 0a|Connection|3a 20|Keep-Alive|0d 0a|Cache-Control|3a 20|no-cache|0d 0a|"

Within:

PCRE: "/^[A-Za-z0-9]{1,15}=(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=|[A-Za-z0-9+\/]{4})$/C"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • fast_pattern

  • http_header

source