""ET TROJAN Suspicious User-Agent (Agent and 5 or 6 digits)""
SID: 2013315
Revision: 12
Class Type: trojan-activity
Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2011_07_12, deployment Perimeter, signature_severity Major, tag User_Agent, updated_at 2019_08_05
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "User-Agent|3a| Agent"
-
Value: !".maxthon.com"
-
Value: !"cloud.10jqka.com.cn"
Within:
PCRE: "/^User-Agent\x3a Agent\d{5,6}\r?$/Hmi"
Special Options:
-
http_header
-
http_header
-
http_header