""Suspicious Base64 Pattern in HTTP Request""
SID: 1000004
Revision: 1
Class Type: web-application-attack
Metadata:
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HTTP_SERVERS
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
Within:
PCRE: "/[a-zA-Z0-9\/+=]{20,}/"
Special Options:
- http_client_body