""ET TROJAN W32/Citadel Download From CnC Server /files/ attachment""

SID: 2018599

Revision: 6

Class Type: trojan-activity

Metadata: created_at 2014_06_24, updated_at 2014_06_24

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "Content-Disposition|3a| attachment|3b| filename=|22 25 32 65|/files/"

Within:

PCRE:

Special Options:

  • http_header

source