""ET TROJAN nspx30 Backdoor Trigger Response Observed""
SID: 2050497
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_01_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_25
Reference:
Protocol: udp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: [53,4499,8000]
Flow:
Contents:
-
Value: "|fe ad 01 00|" Depth: 4
-
Value: "|00 01 00 00 00 00 00|"
-
Value: "|09|microsoft|03|com"
-
Value: "|00 00 01 00 01 aa 9d 9d 9d 9d 9d 9d a5 aa|"
Within: 14
PCRE:
Special Options:
-
nocase
-
fast_pattern