""ET INFO URL Shortener Service Domain (qrs .ly) in DNS Lookup""

SID: 2050695

Revision: 1

Class Type: misc-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2024_02_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_02_02

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: "|03|qrs|02|ly|00|"

Within: 8

PCRE:

Special Options:

  • fast_pattern

  • nocase

source