""ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.BEACON.[CSBundle Original GET]""

SID: 2031264

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_01_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow:

Contents:

  • Value: "GET" Depth: 3

  • Value: "Accept: /|0d 0a|"

  • Value: "Accept-Language: en-US|0d 0a|"

  • Value: "Accept-Encoding: gzip, deflate|0d 0a|"

  • Value: "Cookie:"

  • Value: "display-culture=en\

  • Value: "\

Within:

PCRE: "/^GET\s(?:\/api2\/json\/access\/ticket|\/api2\/json\/cluster\/resources|\/api2\/json\/cluster\/tasks|\/en-us\/p\/onerf\/MeSilentPassport|\/en-us\/p\/book-2\/8MCPZJJCC98C|\/en-us\/store\/api\/checkproductinwishlist|\/gp\/cerberus\/gv|\/gp\/aj\/private\/reviewsGallery\/get-application-resources|\/gp\/aj\/private\/reviewsGallery\/get-image-gallery-assets|\/v1\/buckets\/default\/ext-5dkJ19tFufpMZjVJbsWCiqDcclDw\/records|\/v3\/links\/ping-centre|\/v4\/links\/activity-stream|\/wp-content\/themes\/am43-6\/dist\/records|\/wp-content\/themes\/am43-6\/dist\/records|\/wp-includes\/js\/script\/indigo-migrate)/"

Special Options:

  • check=true\

  • lbcs=0\

  • sess-id="

  • SIDCC=AN0-TY21iJHH32j2m\

  • FHBv3=B"

  • fast_pattern

source