Wncry ransomware: enormous scale and unique behavior, the first wave decays
WannaCry (WannaCry Decryptor, WinCry, .wcry, WCrypt, WNCRY, WanaCrypt0r 2.0) – is the most widespread ransomware spotted so far. Wncry is the extension the infection adds to the files it encrypts. WanaCrypt0r is the name that the crooks use when referring to their deadly application. WannaCry seems to be the invention introduced by the victims and observers. Finally, the infection communicates with its victims via tabs titled Wana Decrypt0r, hence the designation.
The virus launched its mass-propagation on May 12, 2017, as its infection vector incorporated NSA exploit. The IT security spotted the ransomware in the wild a couple of weeks before that date, but the previous propagation was really feeble.
The first wave exhausted very quickly (in two days), but managed to make the enormous number of victims, among which worldwide brands and national corporations. For instance, Renault had to suspend the production of cars at some factories due to the attack.
Wncry is the encryption-for-ransom pattern. If you simply remove Wncry ransomware, you do not decrypt a single file affected. On the other hand, paying the ransom amount claimed by the invader is not a reasonable option.
WannaCry warning message
In many cases, the ransomware simply destroys itself without installing the encryptor. That is because of the routine that shall ensure there is no smart sandboxing in place. The infecting consists of the worms and the decryptor itself. The worm, once installed, tries connecting to iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com. This URL serves as a so-called kill switch. It should not respond, otherwise the worm simply destroys itself without installing the encrypting component. Such a routine aims at avoiding the decryptor from being intercepted and examined by advanced IT technologies, but that was exactly what had happened.
Surprisingly, the second wave of Wncry does not abandon the deadly switch routine. It sets another domain for the worm to connect to. Due to the extreme efficiency of the infection vector behind the ransomware, the hacking keeps on raging. New corporate and individual users fall victims of the scam.
As regards the counter-ransomware measures, prevention is the best cure. Windows users badly need to update their system as recommended by MS17-010. Should the Wncry ransomware already execute its encrypting payload, apply the counter-encryption measures below.
Automated cleanup to remove WannaCry encryptor
Infection vector for ransomware typically features a trojan. The one in question definitely subscribes to that routine. The trojan drops its body into target computer and proceeds with disabling the detecting functionality of any security solution installed. The antivirus is thus unable to spot introduction of virus from the remote server.
The ransomware invasion is indicative of its dropper residing in the computer memory. It also hints at other invasions. The PC can hardly be considered properly protected due to the impacts of the above trojan.
Ultimate option implies a total formatting for any drives of your PC. That is not an option for many users, for it destroys all the data hosted by the machine. The best solution to pick would be in-depth system examination with a reliable security suite.
The trojan that has installed WannaCry ransomware, unless removed, is to trigger its installation campaign as soon as a new strain of ransomware is available. Thereby, it is critical to kill it as soon as possible.
The technique successfully overcomes malicious software, including any ransoming threats. It deploys a reputable security suite that offers not a single chance for malicious components to avoid detection and extermination. The software is incredibly user-friendly and operates on a single-click basic.
It is good to note the removal of WannaCry ransomware does not recover the data affected. However, the virus is subject to compulsory extermination or else is going to introduce related infections into the machine.
1. Click the button to download the stub installer and go through several setup dialogs. Once the tool is up and running, click Start Computer Scan
2. Wait until the cleaner checks the PC for WannaCry malicious code. As soon as the scan is completed, the report will list all malware objects spotted in the system. Make sure the entries for detected infections are checked, and select the Fix Threats feature. This will result in malware removal and system remediation, so you should now be good to go.
Restore the encrypted files
WannaCry ransomware encryption is a sophisticated data modification. There is no simple and single solution to cover all the cases. Transferring the ransom as demanded by the crooks is not the way either.Kindly apply the methods outlined below as they have been carefully developed to provide a recovery help for the most severe cases of encrypting assaults.
Data recovery with automatic software
Good news is that the virus actually deals with copies of the files. The originals have been deleted. The removed data still can be restored by virtue of such tools as Data Recovery Pro.
Shadow Volume Copies
As Windows creates backups at given periods of time, a victim is advised to address relevant restore points. Unfortunately, the method cannot apply unless the System Restore had been enabled prior to the invasion. Please also note the recovery returns files as saved before the time associated with the restore point addressed.
- Previous Versions dialog to target individual files
One can open Properties for any file. The menu has a tab called Previous Versions. It indicates versions of a file that have been backed up.
To make use of the feature, right-click an affected file and choose Properties in the drop-down list. Proceed with clicking the above-mentioned tab. You can opt between the Copy or Restore procedures, the former enabling to copy the item into the location specified by the user.
Backups and removing remaining traces of WannaCry ransomware
Prevention is the best cure. If you stick to making regular reserve copies of your data and store those outside your operating system, the impacts by the ransomware are very limited. However, prior to copying the data from backups into the system hit by WannaCry encryptor, make sure the removal of this virus has completed.
Your manual removal attempts may kill the ransomware in general. In most of the cases, some remnants manage to survive and are still capable of causing a significant damage. Please apply a reliable anti-malware scanner to detect and remove, if applicable, any remaining infections.