""ET TROJAN EXE Download When Server Claims To Send Audio File - Must Be Win32""

SID: 2013441

Revision: 5

Class Type: trojan-activity

Metadata: created_at 2011_08_22, updated_at 2013_06_11

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-Type|3A 20|audio|2F|"

  • Value: "MZ"

  • Value: "PE|00 00|"

Within: 4

PCRE:

Special Options:

  • http_header

  • file_data

  • fast_pattern

source