""ET TROJAN Dalexis Downloading EXE""

SID: 2021017

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2015_04_28, updated_at 2015_04_28

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".jpg"

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b| MSIE 7.0|3b| Windows NT 6.0|29 0d 0a|"

  • Value: !"Accept"

  • Value: !"Referer"

  • Value: "Connection|3a 20|Close|0d 0a|"

Within:

PCRE: "/.jpg$/U"

Special Options:

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

source