""ET TROJAN CMDASP Webshell Default Title in HTTP Response""

SID: 2045284

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Microsoft_IIS, attack_target Web_Server, created_at 2023_05_01, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag WebShell, updated_at 2023_05_01

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "Microsoft-IIS/ "

  • Value: "|3c|title|3e|awen asp.net webshell|3c 2f|title|3e|"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

source