""ET TROJAN Kimsuky Maldoc Activity (GET)""

SID: 2032770

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_15, deployment Perimeter, malware_family Kimsuky, performance_impact Low, signature_severity Major, updated_at 2021_04_15

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: ".php?filename=corona"

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest|2e|5)|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/.php\?filename=corona$/U"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

  • http_header

source