SID: 2035564

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_03_23, deployment Perimeter, malware_family Kimsuky, signature_severity Major, updated_at 2022_05_16

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: "/?m="

  • Value: "&p1="

  • Value: !"Content-Type|3a|"

  • Value: !"Referer|3a|"

  • Value: !","

Within: 4

PCRE: "/\/\?m=[a-z]&p1=[a-z0-9]{8,12}(?:&p2=[^&]+)?(?:&p3=[^&]+)?$/Ui"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

  • http_header

  • http_uri

source