""ET TROJAN Suspected Lazarus APT Related Backdoor Activity (POST) M2""

SID: 2035766

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_04_05, deployment Perimeter, malware_family Lazarus, performance_impact Low, signature_severity Major, updated_at 2022_04_05

Reference:

  • md5

  • 0b9f4612cdfe763b3d8c8a956157474a

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: "jcookie=60d49d"

  • Value: "cookie="

  • Value: !"Referer|3a 20|"

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

Within:

PCRE: "/.asp$/U"

Special Options:

  • http_method

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

source