""ET INFO Office UA Retrieving Content on Unusually High Port""
SID: 2038899
Revision: 1
Class Type: bad-unknown
Metadata: attack_target Client_Endpoint, created_at 2022_09_19, deployment Perimeter, performance_impact Moderate, signature_severity Informational, updated_at 2022_09_19
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 1024:
Flow: established,to_server
Contents:
-
Value: "GET"
-
Value: "|3b 20|ms-office|3b 20|"
-
Value: !"Referer|3a 20|"
Within:
PCRE: "/^User-Agent\x3a\x20[^\r\n]+\x3b\x20ms-office\x3b\x20/Hmi"
Special Options:
-
http_method
-
http_header
-
fast_pattern
-
http_header