""ET EXPLOIT Ghostscript LockDistillerParams type confusion attempt (SMTP)""

SID: 2026092

Revision: 1

Class Type: attempted-user

Metadata: attack_target SMTP_Server, created_at 2018_09_05, deployment Datacenter, signature_severity Informational, updated_at 2018_09_05

Reference:

• Link

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $SMTP_SERVERS

Destination Port: 25

Flow: to_server,established

Contents:

• Value: "LockDistillerParams"

• Value: "16#"

Within:

PCRE: "/16#[^s]\d+\s\x3E\x3E\ssetpattern/smi"

Special Options:

• file_data

source