""ET TROJAN Suspected Fancy Bear (APT28) Maldoc CnC""

SID: 2031628

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_02_18, deployment Perimeter, malware_family APT28, malware_family Fancy_Bear, performance_impact Low, signature_severity Major, updated_at 2021_02_18

Reference:

  • md5

  • 49696043b51acca6ced2ab213bd4abef

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|Windows|20|NT|20|6.1|3b 20|WOW64|3b 0d 0a|"

  • Value: "IB=" Depth: 3

  • Value: "&log="

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_client_body

  • http_client_body

source