""ET TROJAN Possible Mask C2 Traffic""

SID: 2018105

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2014_02_11, updated_at 2014_02_11

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".cgi?Group="

  • Value: "&Ver="

  • Value: "&Inst"

  • Value: "&Ask="

  • Value: "&Bn="

Within:

PCRE:

Special Options:

  • http_uri

  • nocase

  • http_uri

  • nocase

  • http_uri

  • nocase

  • http_uri

  • nocase

  • http_uri

  • nocase

source