""ET TROJAN MedusaHTTP CnC Checkin""

SID: 2025187

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_05, deployment Perimeter, former_category MALWARE, malware_family MedusaHTTP, performance_impact Moderate, signature_severity Major, updated_at 2022_05_03, reviewed_at 2023_12_13

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: ".php"

  • Value: "User-Agent|3a 20|Mozilla/5.0 (X11|3b 20|Ubuntu|3b 20|Linux i686|3b 20|rv|3a|45.0) Gecko/20100101 Firefox/45.0"

  • Value: "xyz=" Depth: 4

  • Value: "|7c|"

  • Value: "|7c|"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

source