Do not trust the I KNOW YOU OPENED MY LAST MAIL sextortion scam

Also Known As: possible malware infections
Damage level: Medium


Like many other sextortion emails, this one is used by scammers who try to trick recipients into paying to prevent distribution of humiliating videos (and personal information) that the criminals have supposedly recorded. Emails of this kind should never be trusted or taken seriously: all statements made by them are false.


Threat Summary:
Threat Type Phishing, Scam, Social Engineering, Fraud.
Fake Claim According to scammers, they have recorded a compromising video and will distribute it unless they are paid.
Cyber Criminal Cryptowallet Address 1CoRXK3iz58WZAnYwJ6RdYotzFABUB4v7a
Size of Ransom US$900 (in Bitcoin)
Symptoms Unauthorized online purchases, changed online account passwords, identity theft, illegal access of the computer.
Distribution methods Deceptive emails, rogue online pop-up ads, search engine poisoning techniques, misspelled domains.
Damage Loss of sensitive private information, monetary loss, identity theft.
Malware Removal (Windows)

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Scammers claim that the computer was infected with a remote administration tool (RAT), which gave them access to all accounts, the microphone and webcam, and allowed them to monitor the screen. The email states that they have collected private data and recorded a compromising video, supposedly in which the recipient can be seen "satisfying himself".

They threaten to proliferate this video by sending it to all contacts, posting it on social networks and the Darknet unless they are paid US$900 in the Bitcoin cryptocurrency by making a transaction to a provided BTC wallet address. They encourage victims to make the payment within two days.

As mentioned, this is just one of the many email scams available, and it should not be trusted. These scammers have not infected your computer with any malware and/or a RAT, and the compromising video simply does not exist.

We receive a great deal of feedback from concerned users about this type of scam email. Here is the most popular question we receive (in this case, relating to a scam that claims to have obtained compromising videos or photos of the user):

Q: Hi pcrisk.com team, I received an email stating that my computer was hacked and they have a video of me. Now they are asking for a ransom in Bitcoins. I think this must be true because they listed my real name and password in the email. What should I do?

A: Do not worry about this email, neither hackers nor cyber criminals have infiltrated/hacked your computer and there is no video of you watching pornography. Simply ignore the message and do not send any Bitcoins. Your email, name, and password was probably stolen from a compromised website such as Yahoo (these website breaches are common). If you are concerned, you can check if your accounts have been compromised by visiting the haveibeenpwned website.

More examples of similar spam campaigns (email scams) are "The last time you visited a Porn website", "Hacker who has access to your operating system" and "You certainly do not know me". Typically, they are harmless and do not contain any website links or attachments that would lead to installation of malware.

There are, however, spam campaigns that do. Some examples of malicious programs that are proliferated through emails include TrickBot, Hancitor, Emotet and LokiBot.

How do spam campaigns infect computers?

Typically, cyber criminals proliferate malware via email by attaching malicious files or including website links that lead to file downloads. Examples of files that are often used to infect systems are MS Office and PDF documents, executable files (.exe), JavaScript files, and archive files such as ZIP, RAR.

Note that they can do harm only if recipients open them. For example, opened malicious Microsoft Office documents demand permission to enable editing/content or macros commands.

If allowed, the documents install malware. MS Office 2010 and older versions do not include Protected View mode. Therefore, if a malicious document is opened with an old version, it will infect systems without asking for additional permissions.

How to avoid installation of malware

Ignore irrelevant emails, especially if they contain attachments or web links and are received from unknown, suspicious addresses. It is not safe to download or install software through third party downloaders, installers, unofficial pages, Peer-to-Peer networks such as torrent clients, eMule, or other similar sources.

All files and programs should be downloaded from official websites and via direct download links. Furthermore, installed software must be updated using tools and/or implemented functions that are designed by official software developers, and not third party tools.

The same applies to activation of licensed, paid software. It is illegal to use unofficial tools. Furthermore, they often cause installation of malicious software.

Finally, we recommend that you regularly scan the operating system for threats with reputable antivirus or anti-spyware software and remove detected threats immediately. If you have already opened malicious attachments, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "I KNOW YOU OPENED MY LAST MAIL" email message:



You have 24hs or I'm going to send the video to your contacts and post it on every socia1 network.


Or maybe I'm going to send it to a few selected contacts, so you understand this is not a joke.


I'm not going to wait anymore now that I know YOU READ MY MAIL.


I know your pass word is: -


Your computer was infected with my malware, RAT (Remmote Administration Tool), your browser wasn"t updated / patched, in such case it"s enough to just vissit some website where my iframe is placed to get automatically infected.


My malware gave me full acccess and control over your computer, meaning, I got acccess to all your accounts (see pass word above) and I can see everything on your screen, turn on your camera or microphone and you won"t even notice about it.


I collected all your privvate data and I RECORDED YOU (through your web-cam) SATISFYING YOURSELF!


After that I removed my malware to not leave any traces.


I can send the video to all your contacts, post it on socia1 network, publish it on the whole web, including the darknet, where the sick people are, I can publish all I found on your computer everywhere!


Only you can prevent me from doing this and only I can help you out in this situation.


Transfer exactly 900$ with the current bitcoin (BTC) price to my bitcoin address.


It"s a very good offer, compared to all that horrible shhit that will happen if I publish everything!


You can easily buuy bitcoin here: www.paxful.com , www.coingate.com , www.coinbase.com , or check for bitcoin ATM near you, or Google for other exchanger.
You can send the bitcoin directly to my address, or create your own wallet first here: www.login.blockchain.com/en/#/signup/ , then receive and send to mine.


My bitcoin address is: 1CoRXK3iz58WZAnYwJ6RdYotzFABUB4v7a


Copy and paste my address, it"s (cAsE-sEnSEtiVE)


I give you 2 days time to transfer the bitcoin!


As I got acccess to this email account, I will know if this email has already been read.
If you get this email multiple times, it"s to make sure you read it, my mailer script has been configured like that and after payment you can ignore it.


After receiving the payment, I will remove everything and you can life your live in peace like before.

Next time update your browser before browsing the web!

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:

How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically.

To remove this malware we recommend using Combo Cleaner Antivirus for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup.

Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button.

In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":


manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

extract autoruns.zip and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs.

These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections, we recommend scanning it with Combo Cleaner Antivirus for Windows.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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