""ET INFO Invalid User-Agent - MSIE 9 on Windows NT 5""

SID: 2016897

Revision: 6

Class Type: bad-unknown

Metadata: created_at 2013_05_21, updated_at 2022_06_27

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: " MSIE 9.0|3b| Windows NT 5."

Within:

PCRE: "/^User-Agent\x3a[^\r\n]+?\sMSIE\s9.0\x3b\sWindows\sNT\s5./Hmi"

Special Options:

source