""ET INFO Possible Malicious Document Request to Afraid.org Top 100 Dynamic DNS Domain""

SID: 2030509

Revision: 2

Class Type: misc-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_07_14, deployment Perimeter, signature_severity Informational, updated_at 2020_07_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "User-Agent|3a 20|Microsoft Office Protocol Discovery|0d 0a|"

Within:

PCRE: "/.(?:s(?:tr(?:eetdirectory.co.id|angled.net)|(?:at(?:dv.net|-dv)|vlen).ru(?:pacetechnology.ne|oon.i)t|hop.tm|uka.se)|c(?:(?:hickenkiller|rabdance).com|o(?:ntinent.kz|alnet.ru)|sproject.org|c.st|f.gs)|m(?:i(?:ne(?:craftn(?:ation.net|oob.com)|.bz)|l.nf)|ooo.(?:info|com)|adhacker.biz)|t(?:h(?:emafia.info|cgirls.com)|wilightparadox.com|ime4film.ru|ruecsi.org|28.net)|a(?:(?:(?:vangardkennel|gropeople).r|buser.e)u|ntongorbunov.com|llowed.org|x.lt)|h(?:a(?:ck(?:quest.com|ed.jp)|ppyforever.com)|ome(?:net.or|.k)g|-o-s-t.name)|p(?:(?:rivatedns|sybnc|ort0|wnz).org|(?:hoto-frame|irat3).com|unked.us)|i(?:n(?:fo.(?:gf|tm)|c.gs)|gnorelist.com|iiii.info|z.rs)|b(?:i(?:gbox.info|z.tm)|yte4byte.com|ot.nu|rb.dj)|d(?:earabba.org|-n-s.name|alnet.ca|ynet.com)|(?:w(?:ith-linux|hynotad)|3dxtras|ohbah).com|u(?:n(?:do.it|i.cx)|k.(?:is|to)|s.to)|v(?:(?:erymad.ne|r.l)t|ietnam.ro)|r(?:o(?:ot.sx|.lt)|-o-o-t.net)|n(?:eon.org|ow.im|a.tl|x.tc)|j(?:umpingcrab.com|avafaq.nu)|f(?:(?:art|ram)ed.net|tp.sh)|(?:k(?:ir22.r|.v)|69.m)u|l(?:inux[dx].org|eet.la)|e(?:vils.in|z.lv)|(?:24-7.r|qc.t)o|(?:55|gw).lt|1337.cx)(?:\x3a\d{1,5})?$/Hm"

Special Options:

  • http_header

source