""ET TROJAN APT DarkHydrus DNS Lookup 9""
SID: 2026783
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2019_01_11, deployment Perimeter, performance_impact Low, signature_severity Major, tag APT, tag DNS_tunneling, tag DarkHydrus, updated_at 2019_01_11
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: "|09|0ffice365|08|services|00|"
Within: 7
PCRE:
Special Options:
-
nocase
-
fast_pattern