""ET TROJAN APT28 Uploader Variant CnC Beacon""

SID: 2023916

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 2016_12_07, deployment Perimeter, malware_family APT28_Uploader, performance_impact Significant, signature_severity Major, tag c2, updated_at 2024_04_22, 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: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "."

  • Value: "/?"

  • Value: "="

  • Value: !"Content-Type|3a|"

  • Value: !"Referer|3a|"

  • Value: !"Accept"

  • Value: !"google.com|0d 0a|"

  • Value: ".1|0d 0a|User-Agent|3a 20|Mozi"

Within: 3

PCRE: "/\/?[a-zA-Z0-9]{1,3}=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

source