""ET TROJAN ISMAgent DNS Tunneling (microsoft-publisher . com)""
SID: 2024504
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 2017_07_28, deployment Perimeter, malware_family Ismdoor, performance_impact Moderate, signature_severity Major, updated_at 2019_08_28
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: "|13|microsoft-publisher|03|com|00|"
Within: 7
PCRE:
Special Options:
-
nocase
-
fast_pattern