""ET TROJAN CopperStealer - Remote Desktop - Initial Checkin""

SID: 2037030

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_17, deployment Perimeter, malware_family CopperStealer, signature_severity Major, tag c2, updated_at 2023_04_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

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: "x-csrftoken|3a 20|x|0d 0a|"

  • Value: "guid=" Depth: 5

  • Value: !"&"

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

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

source