""ET TROJAN Win32/Cryptrun.B Connectivity check""

SID: 2014173

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2012_01_31, updated_at 2012_01_31

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: from_client,established

Contents:

  • Value: "GET"

  • Value: "/search?qu="

  • Value: "User-Agent|3a| Firefox/2.0.0.2|0D 0A|"

  • Value: "Host|3a| www.google.com|0D 0A|"

  • Value: "Content-Length|3a| 4|0D 0A|"

Within:

PCRE:

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

  • http_header

  • http_header

source