""ET TROJAN GCleaner Downloader Activity M11""

SID: 2049040

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, created_at 2023_11_01, deployment Perimeter, malware_family GCleaner, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2023_11_01, reviewed_at 2023_11_01

Reference:

  • md5

  • 51162ded57e5aeda4eb0bbe6ed5d52f0

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: "/api/files/client/s"

  • Value: "User-Agent|3a 20|"

  • Value: "|7c|"

  • Value: "|7c|"

  • Value: "|7c|"

Within: 1

PCRE: "/Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source