""ET INFO DYNAMIC_DNS Query to a Suspicious no-ip Domain""
SID: 2013743
Revision: 7
Class Type: misc-activity
Metadata: created_at 2011_10_05, signature_severity Informational, updated_at 2024_01_31
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: "|05|no-ip|03|"
Within: 7
PCRE:
Special Options:
- fast_pattern