""ET WEB_SERVER Suspected SUPERNOVA Webshell Command (External)""
SID: 2031879
Revision: 2
Class Type: attempted-admin
Metadata: attack_target Server, created_at 2021_03_09, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_03_09
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_server
Contents:
-
Value: "POST"
-
Value: "/Orion/logoimagehandler.ashx"
-
Value: "User-Agent|3a 20|python-requests/"
Within:
PCRE:
Special Options:
-
http_method
-
fast_pattern
-
http_uri
-
nocase
-
http_header