""ET INFO File Sharing Domain (fastupload .io) in DNS Lookup""

SID: 2052268

Revision: 1

Class Type: misc-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2024_04_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag File_Sharing, updated_at 2024_04_25

Reference:

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: 53

Flow:

Contents:

  • Value: "|01|" Depth: 1 Offset: 2

  • Value: "|00 01 00 00 00 00 00|"

  • Value: "|0a|fastupload|02|io|00|"

Within: 15

PCRE:

Special Options:

  • fast_pattern

  • nocase

source