""ET WEB_SERVER Suspicious Chmod Usage in URI (Inbound)""
SID: 2009363
Revision: 8
Class Type: attempted-admin
Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, signature_severity Minor, updated_at 2019_12_31
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HTTP_SERVERS
Destination Port: $HTTP_PORTS
Flow: to_server,established
Contents:
-
Value: "chmod"
-
Value: !"&launchmode="
-
Value: !"/chmod/"
-
Value: !"searchmod"
Within:
PCRE: "/chmod(?:+|\x2520|\x24IFS|\x252B|\s)+(?:x|[0-9]{3,4})/Ui"
Special Options:
-
nocase
-
http_uri
-
http_uri
-
http_uri
-
http_uri