Link Search Menu Expand Document

Flow_InboundSMTP

ID: 100444

Description:

Inbound SMTP - This behavior alerts on successful (more than 0 bytes each direction) inbound SMTP, which is insecure - KLK

Repository: Group: Compliance Type: metaflow

Default Status:

Enabled

Tags:
SMTP
 

Selector:

Query:

dp:25 AND txB>0 AND rxB>0

Filters:

Field MUST hit
dip entity: [ HOME_NET ]
Field MUST NOT hit
sip entity: [ HOME_NET ]
  entity: [ SMTP_SourceAllowList ]
dip entity: [ SMTP_DestinationAllowList ]

Behavior Rule:

Key Type Behavior Category
dip ip network access

Risks:

Risks Base Score Dimension
     

Attributes:

Alias Key
destIP dip
recvBytes rxB
transBytes txB
sourceIP sip
srcCity s_city
srcCountry s_country

Correlation Rules:

First Occurrence:

Name Window Fields  
NewInboundSMTPDestination 10 days dip  
  Risks: ALERT_END_POINT ML_NEW_SERVICE

History:

User Date
ke*y@fluencysecurity.com 2021 Sep 22 11:31:32 EDT
ke*y@fluencysecurity.com 2021 Sep 24 08:46:17 EDT

This page was automatically created/formatted on Tue, 2021 Oct 19 00:29:17 EDT, from rule_dump.json (db47c470500ce8686ead334f5eda0596)