""ET INFO Suspicious Domain in DNS Lookup (f5sec .s3 .il-central-1 .amazonaws .com)""
SID: 2049831
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_12_22, deployment Perimeter, signature_severity Informational, updated_at 2023_12_22
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|f5sec|02|s3|0c|il-central-1|09|amazonaws|03|com|00|"
Within: 37
PCRE:
Special Options:
-
fast_pattern
-
nocase