""ET TROJAN [Fireeye] Backdoor.BEACON M2""

SID: 2031321

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 2020_12_14, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_12_14, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "HTTP/1." Depth: 7

  • Value: "Server: nginx/1.14.0 (Ubuntu)"

  • Value: "Connection|3a 20|close"

  • Value: "Cache-Control|3a 20|max-age=300, must-revalidate"

  • Value: "X-Content-Type-Options|3a 20|nosniff"

  • Value: "X-AspNetMvc-Version|3a 20|3.0"

  • Value: "X-AspNet-Version|3a 20|4.0.30319"

  • Value: "X-Powered-By|3a 20|ASP.NET"

  • Value: "Content-Length|3a 20|"

  • Value: "|0d 0a|"

Within: 4

PCRE:

Special Options:

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source