""ET TROJAN Observd DNS Query to Impersoni-fake-ator Domain (mail .irir .org)""
SID: 2042181
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2022_12_07, deployment Perimeter, signature_severity Major, updated_at 2022_12_07
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: "|04|mail|04|irir|03|org|00|"
Within: 15
PCRE:
Special Options:
-
nocase
-
fast_pattern