""ET TROJAN Blackenergy Bot Checkin to C&C""

SID: 2007668

Revision: 14

Class Type: trojan-activity

Metadata: created_at 2010_07_30, updated_at 2012_06_21

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"

  • Value: "Cache-Control|3a| no-cache"

  • Value: "id="

  • Value: "&build_id="

Within:

PCRE: "/id=x.+_[0-9A-F]{8}&build_id=./P"

Special Options:

  • nocase

  • http_method

  • http_header

  • http_client_body

  • http_client_body

  • fast_pattern

source