""ET CURRENT_EVENTS SUSPICIOUS Firesale gTLD IE Flash request to set non-standard filename (some overlap with 2021752)""

SID: 2022894

Revision: 5

Class Type: trojan-activity

Metadata: created_at 2016_06_14, performance_impact Moderate, updated_at 2024_05_04

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "x-flash-version|3a|"

  • Value: !"/crossdomain.xml"

  • Value: !".swf"

  • Value: !".flv"

  • Value: !"[DYNAMIC]"

  • Value: !".swf"

  • Value: !".flv"

  • Value: !"/crossdomain.xml"

  • Value: !"|0d 0a|Cookie|3a|"

  • Value: !"sync-eu.exe.bid"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+.(?:s(?:(?:(?:cien|pa)c|it)e|tream)|c(?:l(?:ick|ub)|ountry|ricket)|m(?:(?:aiso|e)n|o(?:bi|m))|p(?:r(?:ess|o)|arty|ink|w)|r(?:e(?:[dn]|view)|acing)|w(?:eb(?:site|cam)|in)|b(?:(?:outiq|l)ue|id)|d(?:ownload|ate|esi)|(?:accountan|hos)t|l(?:o(?:an|l)|ink)|t(?:rade|ech|op)|v(?:oyage|ip)|g(?:dn|b)|online|faith|kim|xyz)(?:\x3a\d{1,5})?\r?\n/Hmi"

Special Options:

  • http_header

  • http_header

  • http_header

  • nocase

  • http_header

  • nocase

  • http_header

  • nocase

  • http_uri

  • nocase

  • http_uri

  • http_uri

  • http_header

source