""ET TROJAN MacOS/RustBucket System Information Exfiltration Attempt""

SID: 2047616

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2023_08_10, deployment Perimeter, malware_family MacOS_RustBucket, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_10_24, reviewed_at 2023_10_24

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: "|0a|OSX|20|1"

  • Value: "|20|/sbin/launchd|0a|"

Within: 300

PCRE: "/\x0aOSX\x201[0123].\d{1,3}.\d{1,3}/P"

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_client_body

source