""ET TROJAN Suspected Gamaredon Downloader Activity""

SID: 2029500

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_02_19, deployment Perimeter, signature_severity Major, updated_at 2020_02_19

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: "//autoindex.php"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/\x2eddns\x2enet\r$/Hmi"

Special Options:

  • http_method

  • http_raw_uri

  • http_header

source