""ET TROJAN Possible APT28 Maldoc CnC Checkin""

SID: 2027939

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_09_02, deployment Perimeter, performance_impact Low, signature_severity Major, tag APT28, updated_at 2019_09_02

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: "/software-protection/app.php" Depth: 28

  • Value: "Connection|3a 20|Keep-Alive|0d|"

  • Value: !"Referer|3a|"

  • Value: !"Accept"

  • Value: !"Cache"

Within:

PCRE: "/^\/software-protection\/app.php$/Ui"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source