""ET TROJAN Enigma Locker Checkin""

SID: 2023334

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_10_12, deployment Perimeter, malware_family Ransomware, malware_family Enigma, performance_impact Low, signature_severity Major, updated_at 2016_10_12

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "GET"

  • Value: "/get.php"

  • Value: "Connection|3a 20|close"

  • Value: !"Accept"

  • Value: !"Referer|3a|"

  • Value: !"User-Agent|3a|"

Within:

PCRE: "/^Host\x3a\x20(?:\d{1,3}.){3}\d{1,3}\r\nConnection\x3a\x20close(?:\r\n)+$/Hi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

source