A computer trapdoor, also known as a back door, provides a secret — or at least undocumented — method of gaining access to an application, operating system or online service. Programmers write trapdoors into programs for a variety of reasons. Left in place, trapdoors can facilitate a range of activities from benign troubleshooting to illegal access.
A backdoor malware is a malicious computer program used to provide the attacker with unauthorized remote access to a compromised PC by exploiting security vulnerabilities. This backdoor virus works in the background and hides from the user. It is quite difficult to detect as it is very similar to other malware viruses.
Backdoors are similar to Trojans or worms. They open a “backdoor” onto a computer, providing a network connection for hackers or other Malware to enter in. They open doors for malicious activities. A backdoor is considered to be one of the most dangerous parasite types, as it allows a malicious person to execute any possible actions on a compromised computer. Often a backdoor is known to have additional destructive capabilities, such as screenshot capture, keystroke logging, file infection, and encryption. This virus is a combination of different security and privacy threats, which works on its own and does not need to be controlled at all.
This type of malware needs users’ intervention. These parasites type are manually installed in a bundle with other software in the following ways
1.Opening of unknown e-mail messages or using file-sharing programs
2. They are installed by other malware like viruses, trojans or even spyware.
3. Some legitimate programs may have undocumented remote access features.
4. A computer backdoor malware is infected by exploiting certain software vulnerabilities.
1. A backdoor allows the attacker to work with an infected computer as with its own PC and use it for various malicious purposes or even criminal activities
2. A backdoor can obtain and disclose sensitive information like user’s passwords, login names, credit card numbers, exact bank account details, valuable personal documents, and web browsing habits, etc.
3. A backdoor can format the hard disk and all the files on them which would be unrecoverably erased.
4. A backdoor can control computer hardware devices, modify related settings, shutdown or restart a computer at any time.
5. A backdoor can records keystrokes and captures screenshots
6. A backdoor can Distributes infected files to remote computers with certain security vulnerabilities
7. A backdoor can Installs hidden FTP server that can be used by malicious persons for various illegal purposes.
How to remove backdoor virus.
Backdoor malware can be very difficult to detect, and detection methods vary considerably depending on the computer’s operating system. Backdoor is planted manually but can’t be removed manually. Many security programs are offered for backdoors removal, although some viruses might require scans using a few different anti-malware tools.