""ET TROJAN APT28/Sofacy Zebrocy Secondary Payload CnC Checkin""

SID: 2026754

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_01_03, deployment Perimeter, malware_family Zebrocy, performance_impact Moderate, signature_severity Major, updated_at 2019_01_03

Reference:

  • md5

  • 3773150aeee03783a6da0820a8feb752

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: "User-Agent|3a 20|Go-http-client/"

  • Value: "l=" Depth: 2

  • Value: !"%"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • http_client_body

  • http_client_body

  • http_header

source