""ET TROJAN Linux.Ngioweb Stage 1 CnC Activity Server Response (DISCONNECT)""

SID: 2027510

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2019_06_21, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_06_21

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: [$HTTP_PORTS,443]

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: " 200 OK|0d 0a|"

  • Value: "|0d 0a 0d 0a|DISCONNECT "

Within:

PCRE:

Special Options:

  • fast_pattern

source