""ET TROJAN Linux/B1txor20 Backdoor DNS Tunnel Activity M2""
SID: 2035528
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2022_03_18, deployment Perimeter, deployment Internal, malware_family B1txor20, performance_impact Low, signature_severity Major, updated_at 2022_03_18
Reference:
-
md5
-
43fcb5f22a53a88e726ebef46095cd6b
Protocol: udp
Source Network: any
Source Port: 53
Destination Network: $HOME_NET
Destination Port: any
Flow:
Contents:
-
Value: "|00 00 10 00 01 c0 0c 00 10 00 01 00 00 00 01|"
-
Value: "1"
-
Value: "E6NZzH"
Within: 6
PCRE:
Special Options:
- fast_pattern