Siit juhendist leiad informatsiooni ja näpunäiteid rämpsposti kohta.
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Me kõik oleme leidnud oma postkastist soovimatuid kirju ehk rämpsposti ja nii mõnigi meist on hädas olnud sellega, et rämpsposti maht ületab soovitud kirjade mahu. Tartu Ülikooli kirjakaste kaitseb rämpsposti eest filtrite süsteem, mis peatab suurema osa rämpspostist enne, kui see meie postkastidesse jõuab. Paraku on rämpsposti saatjad sellega kursis ja leiavad pidevalt uusi viise, kuidas sellistest filtritest mööda saada, mille tõttu leiab mõni neist kirjadest ka tee meie postkastidesse.
Selle juhendi sisu vastab järgmistele küsimustele:
- kuidas rämpsposti ära tunda
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- mida rämpspostiga ette võtta
Every once in a while we discover unwanted e-mails in our inbox, that sometimes make up most of the received e-mails. These are adverts or spam. The University of Tartu e-mails are protected by a series of filters, which prevent most of the spam from ever reaching a users inbox. Unfortunately, the people responsible for sending out spam are figuring out new ways to bypass these filters, which means that some spam e-mails will still end up in your inbox.
These instructions will answer the following questions:
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Juhised
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Rämpsposti eesmärk on eelkõige teenida raha reklaami edastamisega või võtta üle arvutikasutaja kontod (e-post, sotsiaalmeedia või isegi arvuti/nutitelefon). Tegemist on internetipettuse ühe vormiga, mis põhineb identiteedivargusel ja saab tavaliselt alguse e-posti teel saadetud petukirjast. Rämpspostile viitavad tavaliselt järgmised tunnused:
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How to identify spam e-mails?
Spam usually reaches us in the form of phishing, which is fraudulent attempt to obtain sensitive information such as usernames, passwords, and credit card details (and money), often for malicious reasons, by disguising as a trustworthy entity in an electronic communication. Phishing is typically carried out by email spoofing or instant messaging, and it often directs users to enter personal information at a fake website, the look and feel of which are identical to the legitimate site, the only difference being the URL of the website in concern.
A phishing e-mail can be usually identified by the following symptoms:
- The e-mail is sent from a public or strange e-mail address;
- poor spelling and grammar;
- The creation of a sense of urgency.
Example 1
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From: Jossie Dick (AAA)<Jossie.Dick@colvilletribes.com>
Sent: 7. august 2018. a. 10:45
Subject: ITS HELP DESK
The IT Dept. will be performing repairs to integrate computer and phone mail system tongiht starting at 9pm.
Therefore all staff are to CLICK HERE [!!!A LINK THAT YOU SHOULD NEVER CLICK ON!!!] and enroll for the upgrrade.
Filling the submission form will enable us to migrate your account fully into the system. Cyber Security is every one concern.
Thank you for the understanding...
ITS HELP DESK/SUPPORT
(C) Copyright 2018 Microsoft
All Rights Reserved |
The example above has all the symptoms of a spam/phishing e-mail.
First of all, the sender is someone called Jopssie Dick, who is in no way connected to the University of Tartu. When in doubt, check the intranet's or the public website's employee search function - if the person is not listed, the message is fraudulent.
Secondly, the e-mail's subject is strange and it doesn't look or sound like anything the university's IT-office would send out. IT-office will send out messages for upgrades every once in a while and that information will always be added to the intranet as well. Please remember, that we will never ask for your username and password!
Lastly, the e-mail creates a sense of urgency and has poor spelling and grammar. This is a clear sign of a phishing e-mail.
Example 2
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This has all the symptoms of a spam/phishing e-mail, which will encrypt your files and then try to ransom them. The main difference is that there is no link in the e-mail, but an attachment called invoice.zip. No modern organization sends out official documents in a *.zip container, since that is considered unsafe and telltale sign of a phishing e-mail. Invoices and documents are almost exclusively sent out in the *.pdf format.
If it is anything else, you need to be extra careful!
Ülaltoodud selgituste põhjal tuleks rämsposti tuvastamiseks küsida endalt järgmist.
Kui vastasite ühele neist küsimustest ei, tuleks olla äärmiselt ettevaatlik! Rämsposti ja erinevate petukirjade tüüpide kohta saab lisaks lugeda aadressilt https://et.wikipedia.org/wiki/Internetipettus |
To summarize, you need to ask yourself the following questions in order to identify spam or phishing:
- Do I know the sender? Was the message sent from an official e-mail address (@ut.ee)? Can I verify the sender's e-mail address?
- Was I expecting this e-mail?
- Are the extensions of the files attached to the e-mail known to me (i.e .pdf, *.docx, *.doc, *xls, *xlsx)?
- Is the e-mail's subject official and uses correct spelling and grammar?
- Is the content of the e-mail related to my work or my organization?
- Does the content of the e-mail use correct spelling and grammar?
If the answer to any of the questions above "NO", then you should be extra careful!
More info on spam and e-mail fraud: https://en.wikipedia.org/wiki/Email_fraud
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Kuna rämpsposti levitajad otsivad pidevalt uusi võimalusi organisatsioonide rämpspostifiltritest mööda pääsemiseks, ei ole kõiki kirju võimalik blokeerida enne, kui need on juba meie postkasti jõudnud. Rämpsposti tuvastamisel tuleks see kustutada ja selles asuvaid viiteid või manuseid mitte avada! Kui tekib kahtlus, kas tegemist on rämpspostiga, tuleks kindlasti nõu küsida Tartu Ülikooli arvutiabilt. Rämpsposti edastamiseks arvutiabile |
vaata juhiseid: |
What to do with spam e-mails?
Since spammers find ways to bypass the e-mail filters set up by the e-mail administrators, it is not possible to block all of them, before they reach your inbox.
When receiving spam or phishing e-mails, just delete them and never open any of the included links or attachments.
When in doubt, contact the University of Tartu Helpdesk.
For forwarding spam e-mails to helpdesk, see instructions here: Send mail as attachment
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Kui rämpspost on jõudnud teie postkasti sisendkausta, siis saate selle kirja filtreerida rämpsposti kausta või kirja saatja ära blokeerida. Veebipostkastis tehke rämpspostil parem hiireklõps, avanenud menüüst valige |
Turbesuvandid → Märgi rämpspostiks. Blokeerimiseks valige samas menüüst hoopis |
Blokeeri saatja. |
Outlooki tarkvaras saate seda samuti teha. Tehke parem hiireklõps rämpspostil, avanenud menüüst valige Junk → Block sender.
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How to block spam e-mails?
If spam e-mail has arrived to your inbox, then you can mark the e-mail as spam or even block the sender of the spam e-mail. Right-click on the e-mail, choose Security options from the menu and left-click on Mark as junk. To block the sender, choose Block sender from the same menu.
In Outlook desktop app you can do the same by right-clicking on the spam e-mail, open Junk and click on Block sender.
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Kui olete eksikombel blokeerinud vale saatja, siis saate blokeeritud saatjate nimekirjast blokeeringu maha võtta. Veebipostkastis vajutage üleval paremal sätete ikoonil (hammasratas), seejärel all paremal vajutage Kuva kõik Outlooki sätted lingil. Avaneb uus aken, valige vasakult Rämpspost. Siin näete blokeeritud saatjate nimekirja. Otsige üles e-maili aadress, kellelt tahate blokeeringu eemaldada, vajutage aadressi taga prügikasti ikoonil ning aadress kaob nimekirjast. Lõpuks vajutage all Salvesta nuppu ning muudatused salvestatakse. Outlooki programmis tehke ühel kirjal parem hiireklõps, valige nimekirjast Junk ja valige Junk E-mail Options. Avaneb uus aken, vajutage üleval Blocked senders vahelehel ning nimekiri tuleb lahti. Otsige üles e-maili aadress, keda soovite nimekirjast eemaldada, vajutage sellel aadressil ja paremal vajutage Remove, seejärel muudatuste salvestamiseks vajuta akna allosas OK või Apply. |