""GPL FTP piss scan""

SID: 2100357

Revision: 7

Class Type: suspicious-login

Metadata: created_at 2010_09_23, updated_at 2011_12_02

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: 21

Flow: to_server,established

Contents:

  • Value: "pass -cklaus"

Within:

PCRE:

Special Options:

source