Mac.BackDoor.Siggen.20 Virus (Mac)

Also Known As: "Mac.BackDoor.Siggen.20" backdoor virus
Type: Mac Virus
Distribution: Moderate
Damage level: Severe

How to remove "Mac.BackDoor.Siggen.20" from Mac?

What is "Mac.BackDoor.Siggen.20"?

Mac.BackDoor.Siggen.20 is the name of a malicious program which is designed to operate as a backdoor allowing to download a malicious code from some remote server and then execute it. This malware can be installed on both MacOS and Windows operating systems. Malware that is designed to infect Windows is named BackDoor.Wirenet.517. These malicious programs were discovered by Dr.Web security researchers.

fake whatsapp website used to proliferate Mac.BackDoor.Siggen.20 virus

Basically, this Mac.BackDoor.Siggen.20 backdoor virus is designed to download Python script from a remote server and to execute it. BackDoor.Wirenet.517 version which is designed to target Windows users installs the NetWire RAT (Remote Access Trojan). It is known that backdoor for MacOS infects systems through websites that belong to its developers. It is distributed through fake portfolio/business card website of a non existent person and fake WhatsApp website which is disguised as legitimate/official. When one of them is opened, it identifies user's operating system and, depending on the system, loads either a backdoor virus or a trojan (RAT). Having a backdoor virus installed on a computer can lead to serious problems like downloads and installations of other, high-risk malicious programs such as trojans that are designed to steal personal details, spread malware and so on. These might lead to serious privacy, browsing safety issues, financial, data loss and a variety of other problems. As we mentioned above, BackDoor.Wirenet.517 backdoor virus targets Windows users, it is designed to install NetWire remote access trojan. Cyber criminals use it to control computers of their victims remotely, NetWire allows them to access victim's microphone and camera too. If there is any reason to believe that a computer is infected with Mac.BackDoor.Siggen.20 backdoor virus, it should be removed as soon as possible. Same applies to Windows users might have their computers infected with BackDoor.Wirenet.517 or NetWire.

Threat Summary:
Name "Mac.BackDoor.Siggen.20" backdoor virus
Threat Type Mac/Windows malware, Backdoor infection, Trojan dropper
Detection Names (WhatsAppWeb.zip) DrWeb (Mac.BackDoor.Siggen.20), Full List Of Detections (VirusTotal)
Symptoms Your Mac became slower than normal, you see unwanted pop-up ads, you get redirected to shady websites.
Payload Executes arbitrary Python code in MacOS, drops NetWire RAT (Remote Access Trojan) in Windows OS.
Distribution methods Fake portfolio/business card website, fake WhatsApp download website.
Damage Internet browsing tracking (potential privacy issues), displaying of unwanted ads, redirects to shady websites, loss of private information, installation of high-risk malware
Removal

To eliminate Mac.BackDoor.Siggen.20 backdoor virus our malware researchers recommend scanning your computer with Combo Cleaner.
▼ Download Combo Cleaner
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.

Typically, people are unaware about the existence of backdoor on their systems. If present, they could make installed software and operating systems vulnerable to various exploits. In other words, attackers/cyber criminals might take advantage of such backdoors and use them to gain access to systems or/and data. Backdoors could allow cyber criminals to control systems remotely too.

How did potentially unwanted applications install on my computer?

Mac.BackDoor.Siggen.20 infects systems through fake portfolio or WhatsApp websites, same appliest to the Windows version (BackDoor.Wirenet.517). However, there are many ways to proliferate unwanted/malicious programs. Typically, cyber criminals use spam campaigns, trojans, unofficial, unreliable software download channels, software 'cracking' tools and fake software updaters. Spam campaigns are used to spread viruses through emails that include malicious files/attachments. For example, Microsoft Office or PDF documents, archives like ZIP, RAR, executable files, JavaScript files and so on. Once opened, these files download and install malicious software. Trojans, if installed, often cause chain infections. They download and install malware too. Untrustworthy software download sources can be used to distribute computer infections too. Some examples are various freeware download websites, free file hosting websites, Peer-to-Peer networks (eMule, disguise malicious files as legitimate. People who use such sources risk to download and install some malicious programs instead of the expected software. Software 'cracking' tools are used by people who do not want to pay for the activation of some installed software. However, cyber criminals use these tools to proliferate viruses too. These tools, if used, often infect computers as well. Fake software updaters cause infections either by downloading malware instead of fixing or updating installed programs/systems, or by exploiting bugs, flaws of outdated software.

How to avoid installation of potentially unwanted applications?

To keep computer/operating systems safe, software and files should not be downloaded using third party downloaders, unofficial pages and other channels that we mentioned above. They should be downloaded from official websites only. Installed software/operating system should be updated using implemented functions or/and tools provided by official software developers only. Attachments (or web links) presented in irrelevant emails that are received from unknown, suspicious addresses should not be opened. Software 'cracking' tools should not be used too, it is not legal to activate software using them. Besides, they are often designed to cause downloads and installations of various malware. Installed anti-spyware or anti-virus software should be enabled at all times too. It is not safe to use a computer/browse the Internet without having software of this type installed and active. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate them.

Screenshot of a file (WhatsAppService) used to distribute Mac.BackDoor.Siggen.20 backdoor virus:

file used to proliferate Mac.BackDoor.Siggen.20 backdoor virus

Instant automatic removal of Mac.BackDoor.Siggen.20 backdoor virus: 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 Mac.BackDoor.Siggen.20 backdoor virus. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX", "NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove "mac.backdoor.siggen.20" backdoor virus related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

"Mac.BackDoor.Siggen.20" backdoor virus removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove "mac.backdoor.siggen.20" backdoor virus related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove "mac.backdoor.siggen.20" backdoor virus related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove "mac.backdoor.siggen.20" backdoor virus related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.