""ET FTP Suspicious Quotation Mark Usage in FTP Username""
SID: 2011488
Revision: 3
Class Type: bad-unknown
Metadata: created_at 2010_09_29, updated_at 2022_05_03
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HOME_NET
Destination Port: 21
Flow: established,to_server
Contents:
-
Value: "USER " Depth: 5
-
Value: "|22|"
Within:
PCRE: "/^USER [^\r\n]*?\x22/"
Special Options: