Educause Security Discussion mailing list archives

Re: Sustained spamming of single mailbox


From: Ken Connelly <ken.connelly () UNI EDU>
Date: Thu, 31 Dec 2020 11:11:59 -0600

A new account/address without any connection to the previous may be the
only way to stem the tide. That's obviously a fairly drastic step but it
may be what it takes.  Depending on the nature of the spam, a graylist
type of filter may also provide some relief.

-ken

On 12/31/20 10:44 AM, Bole, Jim A wrote:

I’d appreciate any suggestions on how to mitigate or stop an unusual
spam attack against a single mailbox.

 

We have one account that is being continually spammed with 1-1.5K spam
emails a day for almost 10 days.

 

We’ve quarantined all inbound external email as a workaround.

 

The emails appear to be random spam including newsletters, shopping
and in various languages. Sample subject lines:

 

С наступающим НОВЫМ 2021 годом - БЕЛОГО МЕТАЛЛИЧЕСКОГО БЫКА!!!

Your privacy is key 🔐

[SITREP] Survival Dispatch

The Morning Notes | Fiscal Spending and Bond Yields

End of Year Gown Promotion!

IndieWire Staff Picks Year's Best Films; Wild Box Office Path of 'The
Exorcist'; 2020 Changes to Industry

Guess what’s back in stock?

A guide to your 2020 personal annual review

​[Achtung!] Ich analysiere dein Business persönlich

Kick-start 2021 with our top 5 Sales

Master your home life, from welding to gardening!

 

I have a hunch that someone intentionally targeted the user with some
sort of dark web “spam as a service” The user isn’t aware of anyone
who might be targeting him/her.

 

Any help or info greatly appreciated.

 

Jim Bole

Chief Information Security Officer

Information Technology Services

University at Albany, IT Building 102F, 1400 Washington Avenue,
Albany, NY 12222 

 

 

 

 

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-- 
- Ken
=================================================================
Ken Connelly                       Director, Information Security
Information Security Officer          University of Northern Iowa
email: Ken.Connelly () uni edu   p: (319) 273-5850 f: (319) 273-3010

Any request to divulge your UNI password via e-mail is fraudulent!


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and subscription information can be found at https://www.educause.edu/community

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