""ET TROJAN CozyCar CnC Beacon""

SID: 2023965

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 2017_02_17, deployment Perimeter, malware_family APT29_CozyCar, signature_severity Major, tag c2, updated_at 2017_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: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "=11&"

  • Value: "=2"

  • Value: "&"

  • Value: "=410&"

  • Value: "=650&"

  • Value: "=51"

Within: 9

PCRE: "/=11&[^&]{1,7}?=2[^&]{6,12}&[^&]{1,7}?=410&[^&]{1,7}?=650&[^&]{1,7}?=51$/U"

Special Options:

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • fast_pattern

  • http_uri

source