""ET INFO curl in DNS TXT Response""

SID: 2049647

Revision: 1

Class Type: bad-unknown

Metadata: attack_target Client_and_Server, created_at 2023_12_12, deployment Perimeter, deployment Internal, performance_impact Low, confidence Medium, signature_severity Informational, updated_at 2023_12_12

Reference:

Protocol: udp

Source Network: any

Source Port: 53

Destination Network: $HOME_NET

Destination Port: any

Flow:

Contents:

  • Value: "|00 01 00 01 00 00 00 00|" Depth: 8 Offset: 4

  • Value: "|00 10|"

  • Value: "curl|20|"

Within:

PCRE:

Special Options:

  • fast_pattern

source