""ET TROJAN Lyceum Backdoor CnC Activity M2""
SID: 2034371
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_09, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_11_09
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: "/?kind=" Depth: 7
Within:
PCRE: "/\/\?kind=[0-9]&(?:index|pi|serv)=/U"
Special Options:
-
http_uri
-
fast_pattern