""ET TROJAN Farfli HTTP Checkin Activity""

SID: 2009215

Revision: 6

Class Type: trojan-activity

Metadata: created_at 2010_07_30, updated_at 2012_08_17

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "/getmac.asp?x="

  • Value: "&y="

Within:

PCRE: "/x=[a-f0-9]{2}-[a-f0-9]{2}-[a-f0-9]{2}-[a-f0-9]{2}-[a-f0-9]{2}-[a-f0-9]{2}/Ui"

Special Options:

  • http_uri

  • http_uri

source