Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
This article aims to help you learn more about the latest ransomware outbreak spreading Petya ransomware. It will also show you how to remove the latest Petya.A ransomware virus and restore access to your computer successfully.
Just when we thought something was learned from the massive WannaCry ransomware outbreak, there comes yet another virus like a blast from the past, using the same exploits as WCRY to spread. The malware is known by many as Petya ransomware and it does not encrypt files, but directly attacks the Master Boot Record of the infected computer to encrypt the sectors of it’s hard drive. The latest iteration of Petya, then poses as the notorious WannaCry virus by displaying very similar ransom note beggining with the same “Oops, Your Important Files Are Encrypted” ransom note. If you have become a victim of this version of Petya ransomware, we strongly urge you to the following material on the subject.
Threat Summary
Name
Petya.A
Type
Ransomware
Short Description
Petya.A ransomware encrypts the MBR and then demands $300 for a ransom payoff to get the files back..
Symptoms
The ransomware creates a lockscreen, named “Oops your important files are encrypted”.
Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.
Update July 2017! – The creator of Petya ransomware has offered help to victims by using his master key to partially unlock the drives.
How Does Petya.A Ransomware Infect
Very similar to WannaCry ransomware, the ones who are spreading this new variant Petya.A have focused on Worm infection via an exploit kit that is pretty familiar – ETERNALBLUE from the Shadow Brokers leak back in the beginning of 2017. This exploit is believed to be embedded within the worm infection and used in targeted attacks to organizations.
What is interesting about the worm is that it mostly targets Windows 7 systems, after which Windows XP and finally 10 and 8.1 which account to 8% of the attacks so far. It cannot be said who is behind the attack, but the Petya ransomware virus was offered for sale in the deep web with affiliate program. This means that anyone could have purchased and utilized the ransomware for their own profit. The ones who have put Petya ransomware up for sale have even created a user-friendly interface, making it possible for users with little experience to tamper with the ransomware and use it. However, this still leaves the issue with how the worm managed to infect multiple organizations, starting with ones located in Russia as well as Ukraine. The victims of the initial attacks have reported that once a system of the inner networks of their organization was infected, the virus has begun to infect all of the other systems within the network automatically, pointing out to a sophisticated worm infection.
Petya Ransomware – Technical Analysis
Petya.A ransomware is not limited to just one version. The first Petya ransomware attacks were spotted back In the early 2016. The virus displayed a skull and ared screen. After some time, a new variant came out, known as Mischa ransomware, which was a modified Petya variant. Later both variants were combined into one ransomware, that encrypts the MBR and if that fails, the virus encrypts the files on the compromised computer system.
Then, somewhere around December, 2016, a new, stronger version came out, calling itself GoldenEye ransomware, completing the doubts that the names of the viruses are from the James Bond movie – Golden Eye. The virus attacked the same way as Petya and Mischa and is still involved in the 2017 WannaCry like attacks as it was primarily detected in Ukraine.
And now we come up to the current point of the Petya.A attacks. Few months ago, malware researchers have detected a modified variant of Petya ransomware. It was created to attack organizations and it uses a stronger algorithm than the previously employed 16-byte key used by Petya.
The latest variant of Petya ransomware(Petya.A) may just be the previously detected PetrWrap ransomware which targets organizations. This means that it may perform the following activities on a machine, once it has infected it:
1) Initially immediately after infection, the Petya.A ransomware drops a malicious file, named petwrap.exe which causes a BSOD infection (Blue Screen of Death). After this, the virus immediately displays the following message, pretending to be a disk checked (DSKCHK):
2) Then, Petya begins encrypting the Kernel and the Master Boot Record of the infected computer. It has also been detected to attack he master file table (MFT) on NTFS volumes. 3) Upon infection it may contain an embedded public key, called master_pub 4) When each infection takes place, the virus may generate unique keys for every infected device to separate them. These keys are reported to be called ec_session_priv and ec_session_pub 5) The virus uses SHA516 in ECDH mode which contributes to the encryption of the Master Boot Record (MBR). 6) It also encrypts the decryption key, using another function, called ecdh_shared_digest. 7) The virus also generates a unique identifier to separate the single infection. 8) It all ends up with the lockscreen Petya.A sets on boot which has the following message:
“Ooops, your important files are encrypted.
If you see this text, then your files are no longer accessible, because they have been encrypted. Perhaps you are busy looking for a way to recover your files, but don’t waste your time. Nobody can recover your files without our decryption service.
We guarantee that you can recover all your files safely and easily. All you need to do is submit the payment and purchase the decryption key.
Please follow the instructions:
1. Send $300 worth of Bitcoin to following address: lflz7153HHuxXTuR2R1t78mGSdzafithBUX
2. Send your Bitcoin wallet ID and personal installation key to e-mail wowsmith1234569posteo.net. Your personal installation key: {Unique Key}
If you already purchased your key, please enter it below. Key:_”
How to Try and Recover Drives By Petya.A Ransomware
The previous variant of Petya was indeed decryptable by using a software, called Petya Sector Extractor. Unfortunately, this is not the case with this petya ransomware variant. This is why, we have decided to create theoretical instructions to help you try and recover at least some of your important files. Here is what you will need to have for the instructions:
A screwdriver, corresponding to your desktop/laptop.
A secure computer that is scanned for malware and cleaned and has a proper ransomware protection.
Patience.
First of all, you should choose the safe computer from which to scan your files to be a powerful Windows machine which is also secured. This is why we recommend following these steps to secure it:
After securing the test PC, you should prepare it for the decryption process which will most likely be lengthy. This is why we recommend changing the power settings so that your decryption computer does not automatically hibernate or sleep while left decrypting the drive.
→ Step 1: Click on the battery icon in your system tray (next to the digital clock) in Windows and then click on More Power Options. Step 2:The Power options menu will appear. In your power plan click on Change Plan Settings. Step 3: In your plan’s settings make sure you set “Turn off the display” and “Put computer to sleep” to “Never” from the drop down minutes menu. Step 4: Click on Save Changes and close it.
Recovery Phase
For the recovery process, we have outlined several often-met drive migration scenarios which can be possible between different computers:
From Laptop to Laptop with no extra components.
From Desktop to Desktop with no extra components.
From Laptop to Desktop with a SATA cable if the Desktop has an outdated chipset.
From Desktop to Laptop with a SATA cable if the Laptop has a newer chipset.
To simplify the process, we recommend you to choose machines that do not require any extra cables or components for the drive to run on them. In case you do not have such possibility, we recommend using an external SATA-USB adapter.
Step 1: Remove battery and power from your laptop. For desktop computers, please remove eliminate the power from the contact.
Step 2: Using the screwdriver, unscrew the case which carries the hard drive. For laptops, you should follow these steps:
Step 3: Remove the hard drive again with the screwdriver. It will look similar to the one on the picture below:
Step 4: Plug-in the hard drive on a secure computer which has an internet connection and Windows installed and screw it in firmly. If connected directly, the hard drive should be detected by the OS as a separate partition, similar to the picture below:
Step 5: After you have connected the drive, you will likely not be able to open it, because it’s sectors are encrypted. However, because only some of the sectors are encrypted, enough to render the drive no longer openable, you may have a chance if you use a data recovery software to recover the files from the drive as you were scanning a lost partition. Most data recovery programs have support for scanning broken partitions, but we recommend you to try the following:
We will continue to monitor the situation with Petya ransomware and update with every new variant coming out as we did with the previous Petya variant which was decrypted. Follow this web page or our blog news letter by e-mail for more information to come soon. In the meantime, we strongly advise you to update your Windows systems and secure them properly against malware. To learn more about security your PC and data in the future, we recommend reading the following materials:
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Threats such as Petya.A may be persistent. They tend to re-appear if not fully deleted. A malware removal tool like Combo Cleaner will help you to remove malicious programs, saving you the time and the struggle of tracking down numerous malicious files.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Threats such as Petya.A may be persistent on your system. They tend to re-appear if not fully deleted. A malware removal tool like SpyHunter will help you to remove malicious programs, saving you the time and the struggle of tracking down numerous malicious files.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Note! Your computer system may be affected by Petya.A and other threats. Scan Your PC with SpyHunter SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Petya.A. Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
To remove Petya.A follow these steps:
1. Boot Your PC In Safe Mode to isolate and remove Petya.A files and objects
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
Boot Your PC Into Safe Mode
1. For Windows XP, Vista and 7. 2. For Windows 8, 8.1 and 10. Fix registry entries created by malware and PUPs on your PC.
For Windows XP, Vista and 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu. 2. Select one of the two options provided below:
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
Step 1: Open up the Start Menu.
Step 2: Click on the Power button (for Windows 8 it is the little arrow next to the “Shut Down” button) and whilst holding down “Shift” click on Restart.
Step 3: After reboot, a blue menu with options will appear. From them you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: From the Startup Settings menu, click on Restart.
Step 7: A menu will appear upon reboot. You can choose any of the three Safe Mode options by pressing its corresponding number and the machine will restart.
Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.
2. Find files created by Petya.A on your PC
Find files created by Petya.A
1. For Windows 8, 8.1 and 10. 2. For Windows XP, Vista, and 7.
For Newer Windows Operating Systems
Step 1:
On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
Step 2:
Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
Step 3:
Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
Step 1:
Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
Step 2:
After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
Step 3:
After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
IMPORTANT! Before starting the Automatic Removal below, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
Use SpyHunter to scan for malware and unwanted programs
3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
Scan your PC and Remove Petya.A with SpyHunter Anti-Malware Tool and back up your data
1. Install SpyHunter to scan for Petya.A and remove them.2. Scan with SpyHunter, Detect and Remove Petya.A. Back up your data to secure it from malware in the future.
Step 1: Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to update automatically.
Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
Step 3: If any threats have been removed, it is highly recommended to restart your PC.
Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup.
4. Try to Restore files encrypted by Petya.A
Try to Restore Files Encrypted by Petya.A
Ransomware infections and Petya.A aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested several alternative methods that may help you go around direct decryption and try to restore your files. Bear in mind that these methods may not be 100% effective but may also help you a little or a lot in different situations.
Method 1: Scanning your drive’s sectors by using Data Recovery software. Another method for restoring your files is by trying to bring back your files via data recovery software. Here are some suggestions for preferred data recovery software solutions:
Method 2: Trying Kaspersky and EmsiSoft’s decryptors. If the first method does not work, we suggest trying to use decryptors for other ransomware viruses, in case your virus is a variant of them. The two primary developers of decryptors are Kaspersky and EmsiSoft, links to which we have provided below:
To restore your data in case you have backup set up, it is important to check for Volume Shadow Copies, if ransomware has not deleted them, in Windows using the below software:
Method 4: Finding the decryption key while the cryptovirus sends it over a network via a sniffing tool.
Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key. See how-to instructions below:
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Note! Your computer system may be affected by Petya.A and other threats. Scan Your PC with SpyHunter SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Petya.A. Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
To remove Petya.A follow these steps:
1. Boot Your PC In Safe Mode to isolate and remove Petya.A files and objects
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
Boot Your PC Into Safe Mode
1. For Windows XP, Vista and 7. 2. For Windows 8, 8.1 and 10. Fix registry entries created by malware and PUPs on your PC.
For Windows XP, Vista and 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu. 2. Select one of the two options provided below:
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
Step 1: Open up the Start Menu.
Step 2: Click on the Power button (for Windows 8 it is the little arrow next to the “Shut Down” button) and whilst holding down “Shift” click on Restart.
Step 3: After reboot, a blue menu with options will appear. From them you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: From the Startup Settings menu, click on Restart.
Step 7: A menu will appear upon reboot. You can choose any of the three Safe Mode options by pressing its corresponding number and the machine will restart.
Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.
2. Find files created by Petya.A on your PC
Find files created by Petya.A
1. For Windows 8, 8.1 and 10. 2. For Windows XP, Vista, and 7.
For Newer Windows Operating Systems
Step 1:
On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
Step 2:
Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
Step 3:
Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
Step 1:
Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
Step 2:
After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
Step 3:
After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
IMPORTANT! Before starting the Automatic Removal below, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
Use SpyHunter to scan for malware and unwanted programs
3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
Scan your PC and Remove Petya.A with SpyHunter Anti-Malware Tool and back up your data
1. Install SpyHunter to scan for Petya.A and remove them.2. Scan with SpyHunter, Detect and Remove Petya.A. Back up your data to secure it from malware in the future.
Step 1: Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to update automatically.
Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
Step 3: If any threats have been removed, it is highly recommended to restart your PC.
Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Note! Your computer system may be affected by Petya.A or other threats. Scan Your PC with SpyHunter SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Petya.A. Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
To remove Petya.A follow these steps:
1. Uninstall malicious programs from Windows
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
How to Uninstall malicious programs from Windows:
Here is a method in few easy steps that should be able to uninstall most programs.No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Hold the Windows Logo Button and “R” on your keyboard. A Pop-up window will appear (fig.1).
In the field type in “appwiz.cpl” and press ENTER (fig.2).
This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press “Uninstall” (fig.3).
Follow the instructions above and you will successfully uninstall most programs.
2. Clean your Browser and Registry from Petya.A
Remove Petya.A by cleaning your Browser and Registry.
Remove an extension from Mozilla FirefoxRemove an extension from Google Chrome Remove an extension from Internet Explorer Remove an extension from Microsoft Edge Fix registry entries created by Petya.A on your PC.
Start Mozilla Firefox. Open the menu window
Select the “Add-ons” icon from the menu.
Select the unwanted extension and click “Remove“
After the extension is removed, restart Mozilla Firefox by closing it from the red “X” button at the top right corner and start it again.
Start Google Chrome and open the drop menu
Move the cursor over “Tools” and then from the extended menu choose “Extensions“
From the opened “Extensions” menu locate the unwanted extension and click on its “Remove” button.
After the extension is removed, restart Google Chrome by closing it from the red “X” button at the top right corner and start it again.
Start Internet Explorer:
Click on the gear icon labeled ‘Tools’ to open the drop menu and select ‘Manage Add-ons’
In the ‘Manage Add-ons’ window.
Select the extension you want to remove and then click ‘Disable’. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click ‘Disable’.
After the unwanted extension has been removed, restart Internet Explorer by closing it from the red ‘X’ button located at the top right corner and start it again.
Start Edge
Open the drop menu by clicking on the icon at the top right corner.
From the drop menu select “Extensions”.
Choose the suspected malicious extension you want to remove and then click on the gear icon.
Remove the malicious extension by scrolling down and then clicking on Uninstall.
Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.
IMPORTANT! Before starting the Automatic Removal below, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
Scan your PC and Remove Petya.A with SpyHunter Anti-Malware Tool and back up your data
1. Install SpyHunter to scan for Petya.A and remove them.2. Scan with SpyHunter, Detect and Remove Petya.A. Back up your data to secure it from malware in the future.
Step 1: Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to update automatically.
Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
Step 3: If any threats have been removed, it is highly recommended to restart your PC.
Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Note! Your computer system may be affected by Petya.A and other threats. Scan Your MAC with Combo Cleaner Combo Cleaner is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Petya.A. Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’s EULA and Privacy Policy.
Manually delete Petya.A from your Mac
1. Uninstall Petya.A and remove related files and objects
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with Combo Cleaner
Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’s EULA and Privacy Policy
Step 1: Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
Step 2: Find Activity Monitor and double-click it:
Step 3: In the Activity Monitor look for any suspicious processes, belonging or related to Petya.A:
To quit a process completely, choose the “Force Quit” option.
Step 4: Click on the “Go” button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
Step 5: In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Petya.A. If you find it, right-click on the app and select “Move to Trash”.
Step 6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Petya.A. Check the app you want to stop from running automatically and then select on the Minus (“–“) icon to hide it.
Step 7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:
1.Go to Finder. 2.In the search bar type the name of the app that you want to remove. 3.Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete. 4.If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
2. Remove Petya.A – related extensions from your Mac’s browsers
Remove Petya.A – related extensions from your Mac’s browsers.
Remove a toolbar from Mozilla FirefoxRemove a toolbar from Google Chrome Remove an extension from Safari and reset it.
Start Mozilla Firefox. Open the menu window
Select the “Add-ons” icon from the menu.
Select the Extension and click “Remove“
After the extension is removed, restart Mozilla Firefox by closing it from the red “X” in the top right corner and start it again.
Start Google Chrome and open the drop menu
Move the cursor over “Tools” and then from the extended menu choose “Extensions“
From the opened “Extensions” menu locate the add-on and click on the garbage bin icon on the right of it.
After the extension is removed, restart Google Chrome by closing it from the red “X” in the top right corner and start it again.
Step 1: Remove Safari extensions
Start Safari
Open the drop menu by clicking on the sprocket icon in the top right corner.
From the drop menu select ‘Preferences’ In the new window select ‘Extensions’ Click once on the extension you want removed. Click ‘Uninstall’
A pop-up window will appear asking for confirmation to uninstall the extension. Select ‘Uninstall’ again, and the Petya.A will be removed.
Step 2: Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.
Start Safari and then click on the gear leaver icon.
Click the Reset Safari button and you will reset the browser.
Automatically remove Petya.A from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Petya.A, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
This article aims to help you learn more about the latest ransomware outbreak spreading Petya ransomware. It will also show you how to remove the latest Petya.A ransomware virus and restore access to your computer successfully.
1. For Windows XP, Vista and 7.
2. For Windows 8, 8.1 and 10.
Fix registry entries created by malware and PUPs on your PC.
1. Install SpyHunter to scan for Petya.A and remove them.
Back up your data to secure it from malware in the future.
Remove an extension from Mozilla Firefox
Remove an extension from Google Chrome
Remove an extension from Internet Explorer
Remove an extension from Microsoft Edge
Remove an extension from Safari and reset it.
So can we recover files encrypted by Petra?