On my laptop the antivirus software said I had a threat called Backdoor:Win32/Blackhole.AE, so I immediately quarantined and deleted it. But later the virus came back again so I shut down the PC. Does the virus harm my computer when the computer is off? What does it do exactly? I heard that it steals information and even gets my credit card number. Is it true? I scan my PC with some antivirus programs but it seems that the threat cannot be removed successfully. What should I do?
What is Backdoor:Win32/Blackhole.AE?
Backdoor:Win32/Blackhole.AE is classified as Trojan horse that poses as something other than what it is and invades users’ computers and steals their confidential information. Once your computer gets infected, the activities performed by the Trojan are not apparent to you beforehand. Though it neither replicates nor copies itself, it can damage or compromise the security of your infected computer. A Trojan horse must be sent by someone or carried by another program, and can arrive in the form of a joke program or software of some sort. The malicious functionality of a Trojan horse is anything undesirable for a computer user, including data destruction or the compromise of a computer by providing a means for another attacker to gain access, bypassing normal access controls. Like spyware discussed earlier in this chapter, Trojan horses might offer interesting new games, desktop themes, or all manner of other enticements to a user, to get the user to install the Trojan package.
Once installed, a Trojan horse typically provides some type of apparent functionality to the user, while performing many other tasks behind the scenes, leaving the user unaware. Trojan horse programs often communicate with their creator through Internet Relay Chat (IRC) communications, allowing the creator to modify these programs once installed and even to publish updates that can be applied automatically by the program itself. Table 2-2 lists a few of the more common security risks posed by Trojan horse infections.
A subtype of the Trojan horse is the “back door,” which refers to a programmatically created mechanism for bypassing normal security measures in accessing resources on the vulnerable computer. Occasionally, programmers put into place various hidden shortcuts in their code, designed to ease the process of development or testing. Attackers might utilize one or more security risks to plant their own back-door program somewhere within the network.
Back doors are implanted by the attacker to allow later access to a computer. Remote-access tools can provide an attacker with a back door or allow the attacker to obtain sufficient information to bypass normal authentication measures using key-logged information. Back doors are particularly troublesome for network administrators responsible for tracking down the party responsible for network misuse.
Note: Since Backdoor:Win32/Blackhole.AE is so dangerous to your private information and computer security, please get rid of it as soon as possible. If you are not sure about deleting it manually, we suggest you use an advanced and professional malware removal tool – SpyHunter to get rid of it easily.
How does Backdoor:Win32/Blackhole.AE get into your computer?
Usually, the Trojan is distributed via the free downloads from the Internet. So you need to pay much more attention to P2P file sharing systems and other applications. In addition, chat systems can also spread the malicious files. If you open the malicious files sent by a friend whose account has been hacked, your PC will be infected. Please note that drive-by downloads is also a way for the Trojan to be distributed. It can scan the browser for vulnerabilities with the help of an exploit kit and, if found, unnoticeably infect your PC.
Therefore, NEVER open the files in emails or messages sent by strangers or even your friends unless you are sure that they are safe. Don’t download programs or files from unidentified sources. Never visit malicious websites.
How can you completely remove the Trojan from PC?
Method1: Remove Backdoor:Win32/Blackhole.AE using
Method2: Remove Backdoor:Win32/Blackhole.AE manually
Method1: Remove Backdoor:Win32/Blackhole.AE using SpyHunter
SpyHunter is an application that is specially designed to seek and remove various malicious programs in PCs. It can detect, remove and block spyware, rootkits, adware, keyloggers, cookies, trojans, worms and other types of malware. With this tool, you can quickly and completely remove Backdoor:Win32/Blackhole.AE from your system. Follow the steps below and you can clear the threat from the computer within minutes.
1. Download SpyHunter directly. ( Free Download Now )
2. Click “Scan Computer Now!” button to have a full or quick scan on your PC after you properly install SpyHunter.
3. Select the detected malicious files after your scanning.
4. Click “Remove” button on the right side to remove all threats.
Method2: Remove Backdoor:Win32/Blackhole.AE manually
You’d better make a backup of your system before deleting the malicious files of the Trojan because your any deletion of valid files may cause unimaginable damage to your system. After backing up important data, follow the steps to get rid of the Trojan.
For Windows 7/Vista users, follow the steps below to clear the malicious threat manually.
Step 1: Restart PC with Safe Mode.
1. Click Start, click the arrow next to Shut down and click Restart.
2. Once the system has been restarted, tap F8 key on the keyboard in 1 second intervals.
3. When the Windows Advanced Options menu appears on the screen, choose Safe Mode option.
4. Press Enter button.
Step 2: Show hidden files of the system.
Click the Start button and go to Control Panel . Click on Appearance and Personalization to select Folder Options .
Click the View tab, select “Show hidden files and folders”, deselect “Hide protected operating system files (Recommended)” and then click “Apply” to show hidden files and folders.
Step 3: Delete all the Trojan files.
Step 4: Remove the registry entries changed by the malware.
Click Start button and type
in Run click OK or type regedit in the search box and open regedit.exe in the search results.
Then the Windows registry editor window will open.
In the registry editor, search for the registry entries added by the malware and delete them.
Backdoor:Win32/Blackhole.AE is a malicious Trojan that can get into your computer in deceptive ways and steal your sensitive information. Once it successfully gets into your PC, it copies itself on your PC and makes several modifications on the system registry to run automatically. It may contact to remote hosts and invite other cyber threats to the infected PC or receive instructions from a remote attacker. You compromised computer may perform slower and slower. Therefore, for the sake of computer security and personal information, you need to get rid of the Trojan as soon as possible with the guide in this post.
But you’d better make a backup of the registry before making any modifications on the system registry during manual removal. It is risky to modify the system registry because any deletion of valid registry key may lead to unimaginable consequences. Therefore, we recommend you to use SpyHunter to scan the entire system and then quickly and fully delete the malware from your PC.
Are you searching for effective methods to get rid of Backdoor:Win32/Blackhole.AE ? Your computer runs slower and slower due to the malware? Take it easy. Try a powerful malware removal tool to scan the entire system and then quickly and fully delete all the threats from your PC. Your system will become clean again.