""ET INFO Observed DNS Query to *.ngrok Domain (ngrok-free .dev)""
SID: 2049049
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_11_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_11_02, reviewed_at 2024_05_03
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|ngrok-free|03|dev|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase