""ET TROJAN CommentCrew Possible APT backdoor download logo.png""

SID: 2016487

Revision: 4

Class Type: trojan-activity

Metadata: created_at 2013_02_22, updated_at 2014_09_19

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 80

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/images/logo.png"

  • Value: "Accept|3a| /,,,,,,"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

source