""ET INFO Suspicious Chmod Usage in URI (Outbound)""
SID: 2029216
Revision: 2
Class Type: attempted-admin
Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2019_12_31, deployment Perimeter, signature_severity Major, updated_at 2019_12_31
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
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