""ET MALWARE OSX/MapperState CnC Activity""

SID: 2033031

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2021_05_25, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_05_25

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: "User-Agent|3a 20|ms"

Offset: 7

  • Value: "User-Agent|3a 20 20|(unknown|20|version)|20|"

  • Value: "smc31000" Depth: 8

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • fast_pattern

  • http_client_body

  • http_header

source