""ET TROJAN Gamaredon APT Related Activity (POST)""

SID: 2042995

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_12_22, deployment Perimeter, malware_family Gamaredon, confidence High, signature_severity Major, updated_at 2023_04_04, reviewed_at 2023_12_11

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "asdasda" Depth: 7

  • Value: "POST /verst HTTP/1.1"

  • Value: !"Referer|3a 20|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE: "/^Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\r\n/Hm"

Special Options:

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

source