""ET INFO URL Shortener Service Domain in DNS Lookup (u .to)""
SID: 2035281
Revision: 2
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2022_02_23, deployment Perimeter, signature_severity Informational, updated_at 2022_02_23
Reference:
-
md5
-
8c57fcf51e1d0f3fc1e1775d9fc624df
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: "|01|u|02|to|00|"
Within: 6
PCRE:
Special Options:
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nocase
-
fast_pattern