""ET TROJAN Patchwork CnC Domain in DNS Lookup (weibo .nihaoucloud .org)""
SID: 2054509
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2024_07_16, deployment Perimeter, signature_severity Major, tag Patchwork, updated_at 2024_07_16
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: "|05|weibo|0b|nihaoucloud|03|org|00|"
Within: 23
PCRE:
Special Options:
-
fast_pattern
-
nocase