""ET TROJAN JynxLoaderV2 CnC Checkin""

SID: 2049408

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, created_at 2023_11_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_11_30

Reference:

  • md5

  • 46ce034ff575452d1d26c2002788f403

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: "/"

  • Value: "User-Agent|3a 20|4a696e785632"

  • Value: !"Referer|3a 20|"

  • Value: "7c31"

Within:

PCRE: "/^[a-f0-9]{200}/P"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_client_body

source