""ET TROJAN Ursnif Variant CnC Data Exfil""

SID: 2021830

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2015_09_24, updated_at 2015_09_24

Reference:

  • md5

  • f870c0d62691fc39194922e4a59fdc1c

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: !"Accept"

  • Value: !"Referer|3a|"

  • Value: "name=|22|upload_file|22 3b 20|filename=|22|"

  • Value: ".bin|22 0d 0a|"

Within: 7

PCRE: "/.[a-z]{3,4}$/U"

Special Options:

  • http_method

  • http_header

  • http_header

  • http_client_body

  • fast_pattern

  • http_client_body

source