A very sophisticated kernel-based Trojan and bootkit connected to it have been spotted to infect computers on a global scale. The Trojan has changed its distribution methods making them, even more, sophisticated. Its bootkit is reported to interact with BIOS’s key handler and allows it to monitor all. Researchers from F-Secure have concluded that the malware may be a part of a mysterious Spam bot by being a new variant of Srizbi, which is also a kernel spam-bot detected in 2008. However, they report that it’s code is new, and it has rootkit capabilities now.
|Name||Pitou Trojan and bootkit|
|Type||Trojan and bootkit|
|Short Description||The cyber-threat may spam and connect to remote hosts. It may also steal data and download other malicious files onto the user PC.|
|Symptoms||Users may witness blue screen of death, system freezes, system slowdowns, and some legitimate windows processes to take more than the usual CPU and RAM usage.|
|Distribution Method||Via Exploit Kits, malicious .pdf attachments and malicious links carrying drive-by downloads of exploits. Supports even the latest Windows versions.|
|Detection Tool||Download Malware Removal Tool, to See If Your System Has Been Affected by malware|
|User Experience||Join our forum to discuss Pitou Trojan and bootkit.|
Pitou – How is It Distributed
The sophisticated attack may be initiated by distributing by an exploit-creating kit which is reported to be spread via malicious web links. There were three Trojan droppers which were discovered by F-Secure researchers in their report – Gamarue, Wauchos and Onkods. And cyber-criminals may use even more downloaders.
The attacking method by this Trojan was then changed to distribute an exploit-carrying .pdf file as an e-mail attachment that has the following message:
→ “Please, can you let me have a payment date for the attached document.
Pitou Trojan and Bootkit – How Does It Work
The bootkit of Pitiou may attach to the BIOS’s object, called “INT 13h”. This may allow it to monitor various system activities.
After doing this, the malware ma set up hooks in order to tamper with Windows’s boot sequence. After this, its bootkit, called Boot.Pitou may drop a variant of the Pitou Trojan directly into the MBR (Master Boot Record).
After being activated, the trojan may create a malicious module, imitating the legitimate process “explorer.exe”. It is reported to interact with the following legitimate Windows modules, and it may assume control over the following functions:
The Trojan then may connect to a third-party remote host:
Furthermore, it might send out spam messages from a computer that has been compromised. The spam messages may be sent out via social networks as well as other remote locations.
The difference between this Spamming malware and others is that it is compatible with various Windows operating systems. Also, it is important to know that Pitou has enhanced code obfuscation techniques that aim to make its discovery and reverse engineering more difficult for a researcher, hence leave it for longer in the wild without any security gaps being found.
Remove Pitou Trojan and Bootkit
Removing this threat may take more than a simple discovery and deleting since it uses a bootkit to infiltrate the firmware of the computer. For the removal of this software, you need to download a special anti-malware software that has bootkit removal capabilities. One way too remove it automatically is to isolate it by booting into safe mode, instructions for which are outlined below.
- Guide 1: How to Remove Pitou Trojan and bootkit from Windows.
- Guide 2: Get rid of Pitou Trojan and bootkit from Mac OS X.
- Guide 3: Remove Pitou Trojan and bootkit from Google Chrome.
- Guide 4: Erase Pitou Trojan and bootkit from Mozilla Firefox.
- Guide 5: Uninstall Pitou Trojan and bootkit from Microsoft Edge.
- Guide 6: Remove Pitou Trojan and bootkit from Safari.
- Guide 7: Eliminate Pitou Trojan and bootkit from Internet Explorer.
How to Remove Pitou Trojan and bootkit from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Pitou Trojan and bootkit
Step 2: Uninstall Pitou Trojan and bootkit and related software 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.
Step 3: Clean any registries, created by Pitou Trojan and bootkit on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Pitou Trojan and bootkit there. This can happen by following the steps underneath:
Get rid of Pitou Trojan and bootkit from Mac OS X.
Step 1: Uninstall Pitou Trojan and bootkit and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- 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.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Pitou Trojan and bootkit via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, 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.
Remove Pitou Trojan and bootkit from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: 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.
Erase Pitou Trojan and bootkit from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: 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.
Uninstall Pitou Trojan and bootkit from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove Pitou Trojan and bootkit from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Pitou Trojan and bootkit will be removed.
Eliminate Pitou Trojan and bootkit from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: 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'.
Step 5: 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.