""ET TROJAN TeleBots BCS-server CnC Beacon""

SID: 2023652

Revision: 1

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_15, deployment Perimeter, malware_family TeleBots_payload, signature_severity Major, tag c2, updated_at 2016_12_15, 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=" Depth: 6

  • Value: !"Content-Type|3a|"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

source