SID: 2042975

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_12_20, deployment Perimeter, malware_family Gamaredon, signature_severity Major, updated_at 2022_12_20

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: ".emf?=CreateObject"

  • Value: "mozilla/5.0"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+\x3a\x3a\x2f\x2e/Hmi"

Special Options:

  • http_method

  • nocase

  • http_uri

  • fast_pattern

  • http_header

  • nocase

  • http_header

source