""ET TROJAN Kimsuky Related Maldoc Activity (POST)""

SID: 2033595

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_07_28, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_07_28

Reference:

  • md5

  • 5b2355014f72dc2714dc5a5f04fe9519

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?who="

  • Value: "&secure="

  • Value: "&v="

  • Value: ".exe|20|"

  • Value: "User-Agent|3a 20|Mozilla/4.0|20|(compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

source