""ET TROJAN IcedID WebSocket Request""

SID: 2026673

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 2018_11_29, deployment Perimeter, malware_family IcedID, signature_severity Major, updated_at 2018_11_29

Reference:

  • md5

  • b17a729efb71d1781405c6c00052c85e

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/data2.php?"

  • Value: "Upgrade|3a 20|websocket|0d 0a|Connection|3a 20|Upgrade|0d 0a 0d 0a|"

  • Value: !"Referer"

  • Value: !"Accept"

Within:

PCRE: "/\/data2.php\?[A-F0-9]{16}$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_header

source