""ET TROJAN Carbanak APT CnC Beacon 2""

SID: 2020456

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_02_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2015_02_17, 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: any

Flow: established,to_server

Contents:

  • Value: "|00 00|OS|3a 20|" Depth: 6 Offset: 10

  • Value: "|2c 20|Domain|3a 20|"

  • Value: "|2c 20|User|3a 20|"

  • Value: "|00|"

Within:

PCRE:

Special Options:

  • fast_pattern

source