""ET TROJAN Observed DNS Query to NanoCore Domain (nanocore2023 .duckdns .org)""
SID: 2044529
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2023_03_08, deployment Perimeter, signature_severity Major, updated_at 2023_03_08, reviewed_at 2023_09_19
Reference:
-
md5
-
b49b06f2260455820b73afc1727f9b6b
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: "|0c|nanocore2023|07|duckdns|03|org|00|"
Within: 26
PCRE:
Special Options:
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nocase
-
fast_pattern