""ET TROJAN MacOS/UpdateAgent.A CnC Activity M1""

SID: 2035085

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2022_02_03, deployment Perimeter, signature_severity Major, updated_at 2022_02_03, reviewed_at 2024_06_26

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "GET"

• Value: "/wrte?maid=" Depth: 11

• Value: "User-Agent|3a 20|curl"

• Value: !"Referer|3a 20|"

Within:

PCRE: "/^\/wrte\?maid=[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}$/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

• http_header

source