.docm file ransomware: remove VBA based virus and encrypt files

.docm file trojan does not refer to any particular infection. It rather designates an infection vector. The latest cases of its use have involved the propagation of Dridex trojan and Zepto ransomware.

A docm file is a Microsoft Office document with a macros. The macros is a VBA script profoundly abused by the hackers. The VBA stands for Visual Basic for Applications. Instead of executing a useful routine, the script drops a malicious program. Hence the security experts suggest the users are to keep the macros disabled. MS Office update introduced by Microsoft is to turn off the VBA functionality before manually enabled by the admin. The issue is the individual and sometimes corporate users may have the admin authorization. A Docm file would not run the malicious algorithm automatically, but may ask for the permit to execute the relevant macros. Once you grant your consent, the macros triggers to drop the infection. Let’s take a closer look how that works for a particular cyber infection.

.docm infected file

.docm infected file

There is a piece of ransomware called Locky. Its prevailing propagation method leverages a spam email with Docm file attached. If you open the file, it looks like the text has not been recognized. A misleading notification would urge you to enable the macros. It claims that would refine the scripts so that you can read the text afterwards. The latest strain of Locky called Zepto resorts to the same technique. However, the MS Word document with a macros is blank. It simply prompts the user to enable the macros.

 

It goes without saying that any such macros, once activated, drops the infection. To that end, the cheaters often send the message from the email that the receiver does not find suspicious. That encourages the user to open the infecting files and run the malicious VBA script.

Zepto ransomware propagation is a booming business. Its success owes to the propagation based on Macros vulnerabilities. A targeted attack increases the odds that the victim is to launch the ransomware installation by triggering the Macros. This creates a .exe file in the Temporary directory. It corresponds to the process of a variable name. As the process is running all the locations available from the infected machine undergo the scanning. Every valuable piece of data is subject to the detection and follow-up encryption.

Zepto is an extorting crypto-trojan. To make its victim pay the ransom, the infection scrambles the files as detected in the above manner. First, the ransomware encodes your data with the AES-128 standard. To ensure the decryption tool remains undisclosed, the virus also encrypts the key itself. The key encryption resorts to RSA-2048 standard.

The hackers articulate their demands. The ransomware creates the ransom reminder in HTML and BMP formats. It drops copies thereof to every directory. Besides, the BMP file replaces your default desktop background. The victims would learn from the message that they need to pay 0.5 bitcoins. This amount currently exceeds USD 300.

To sum it up, the price for running a macros in MS Word may be too high. It is good to apply extra precaution. Any macros makes a part of the documents that come attached to the incoming mail. The IT security experts suggest that the users never open email unless verified with up-to-date security software.

Automated cleanup to remove .docm file extensiom virus:

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 .docm 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 Docm virus 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 Docm ransomware files 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

.docm 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.

test-properties

shadow explorer

Backups and removing remaining traces of the .docm virus

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 .docm ransomware, 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.

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