""ET SMTP SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M3""

SID: 2019408

Revision: 1

Class Type: misc-activity

Metadata: created_at 2014_10_15, updated_at 2014_10_15

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $SMTP_SERVERS

Destination Port: [25,587]

Flow: established,to_server

Contents:

• Value: "|0D 0A 0D 0A|UEsDB"

Within:

PCRE: "/^[A-Za-z0-9\/+\x0D\x0A]+?c[\x0d\x0a]{0,2}H[\x0d\x0a]{0,2}Q[\x0d\x0a]{0,2}v[\x0d\x0a]{0,2}Z[\x0d\x0a]{0,2}W[\x0d\x0a]{0,2}1[\x0d\x0a]{0,2}i[\x0d\x0a]{0,2}Z[\x0d\x0a]{0,2}W[\x0d\x0a]{0,2}R[\x0d\x0a]{0,2}k[\x0d\x0a]{0,2}a[\x0d\x0a]{0,2}W[\x0d\x0a]{0,2}5[\x0d\x0a]{0,2}n[\x0d\x0a]{0,2}c[\x0d\x0a]{0,2}y[\x0d\x0a]{0,2}9[\x0d\x0a]{0,2}v[\x0d\x0a]{0,2}b[\x0d\x0a]{0,2}G[\x0d\x0a]{0,2}V[\x0d\x0a]{0,2}P[\x0d\x0a]{0,2}Y[\x0d\x0a]{0,2}m[\x0d\x0a]{0,2}p[\x0d\x0a]{0,2}l[\x0d\x0a]{0,2}Y[\x0d\x0a]{0,2}3/R"

Special Options:

source