""ET TROJAN GCleaner Downloader Activity M1""

SID: 2032349

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_03_30, deployment Perimeter, malware_family GCleaner, performance_impact Low, signature_severity Major, tag Downloader, updated_at 2021_03_30

Reference:

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: ".php?pub=mix"

  • Value: !"Mozilla/"

  • Value: "User-Agent|3a 20|"

  • Value: "-"

  • Value: "-"

  • Value: "-"

  • Value: "|0d 0a|"

Within: 2

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source