""ET TROJAN PowerShell/Agent.A DNS Checkin""
SID: 2022836
Revision: 4
Class Type: trojan-activity
Metadata: created_at 2016_05_24, updated_at 2019_08_28
Reference:
Protocol: udp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow:
Contents:
-
Value: "|01|" Depth: 1 Offset: 2
-
Value: "|00 01 00 00 00 00 00|"
-
Value: "00"
-
Value: "00000"
-
Value: "|00|"
Within: 2
PCRE: "/^(?!0+30)[0-9A-Z]+30[^0-9]/R"
Special Options:
- fast_pattern