""ET TROJAN OSX/WizardUpdate CnC Activity""

SID: 2031531

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2021_01_20, deployment Perimeter, signature_severity Major, updated_at 2021_01_20

Reference:

  • md5

  • 6a76ee693b3d43ed385ce4b930fe3e30

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: "/checknew"

  • Value: "{|22|machine_id|22 3a 20 22|" Depth: 16

  • Value: "|22 2c 20 22|model_name|22 3a 20 22|"

  • Value: "|22 2c 20 22|os|22 3a 20 22|"

  • Value: "|22 2c 20 22|os_version|22 3a 20 22|"

  • Value: "|22 2c 20 22|model_ident"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/\/checknew$/Ui"

Special Options:

  • http_method

  • nocase

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

source