""ET TROJAN DNS Query for DNSpionage CnC Domain""
SID: 2026557
Revision: 4
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_26, deployment Perimeter, signature_severity Major, tag DNSpionage, tag DNS_tunneling, updated_at 2018_11_29
Reference:
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md5
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c00c9f6ebf2979292d524acff19dd306
Protocol: udp
Source Network: $HOME_NET
Source Port: any
Destination Network: any
Destination Port: 53
Flow:
Contents:
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Value: "|01|" Depth: 1 Offset: 2
-
Value: "|00 01 00 00 00 00 00|"
-
Value: "|09|0ffice36o|03|com|00|"
Within: 7
PCRE:
Special Options:
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nocase
-
fast_pattern