""ET CURRENT_EVENTS Observed BottleEK Domain in DNS Lookup 2021-04-15""
SID: 2032764
Revision: 3
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_04_15, deployment Perimeter, former_category EXPLOIT, signature_severity Major, updated_at 2022_05_02
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: "|06|ctgame|02|tk"
Within: 7
PCRE:
Special Options:
- nocase