""ET TROJAN Win32.Agent.cyt (Or variant) HTTP POST Checkin""

SID: 2008003

Revision: 4

Class Type: trojan-activity

Metadata: created_at 2010_07_30, updated_at 2010_10_05

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST" Depth: 4

  • Value: ".cgi"

  • Value: "o=i&k="

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

source