Home Guides .ECC files virus (TeslaCrypt ransomware) decryption and removal tool

.ECC files virus (TeslaCrypt ransomware) decryption and removal tool

3 min read
Amongst the extensions that the TeslaCrypt virus appends to one’s personal files, .ecc is currently the prevalent one, so learn how to restore such data.

The malefactors in charge of the abominable TeslaCrypt project haven’t been going the easy route to achieve their extortion goals. This is one of the oldest crypto ransomware breeds, with a total of four iterations having been coined and launched into the wild since early 2015. As this infection has technically evolved over time, it became an advanced threat featuring a ramified distribution network, strong RSA-4096 encryption, and a flawless crypto key exchange methodology. In the latest version, TeslaCrypt 4.2, the criminals have optimized the code compiling routine and made the Volume Shadow Copy deletion more efficient. Furthermore, this Trojan’s payload is now actively delivered over compromised WordPress sites, with the Nuclear exploit kit involved in the circulation process.

The .ecc file malware displays step-by-step data recovery instructions
The .ecc file malware displays step-by-step data recovery instructions

Notwithstanding the modifications, some features are invariable. In particular, this ransomware concatenates a specific range of extensions to the original filenames. These include .ecc, .ccc, .vvv, .xxx, .micro, and quite a few more. As per recent analysis, the addition of .ecc string is trending in the perpetrators’ current activities.

Here’s what the whole contamination cycle looks like: the loader is stealthily executed on a computer as a result of spam-backed social engineering or an exploit kit seizing upon software vulnerabilities in the targeted system. Then, TeslaCrypt traverses all letter volumes of the hard drive as well as mapped network shares, looking for the types of data that correspond to pictures, media, databases and Microsoft Office documents. The ransomware leverages the aforementioned public-key cryptosystem to encode all of the detected personal items and sends the private key to a Command and Control server.

Tor-based TeslaCrypt Decryption Service site
Tor-based TeslaCrypt Decryption Service site

The victim is presented with buyout instructions in a document titled Howto_Restore_FILES.HTM (.BMP, .TXT), HELP_RESTORE_FILES.TXT (.BMP) or a more recent edition, !RecoveR!-[random 5 characters]++.HTML (.PNG, .TXT). To obtain the private key, the user needs to pay around 1 Bitcoin, with the USD equivalent amounting to $500 or so. The TeslaCrypt Decryption Service is hosted on a Tor gateway page. It has a built-in payment functionality and allows recovering one file for free.

The .ecc file variant of TeslaCrypt is a complex ransomware sample. Its earlier builds could be decrypted, courtesy of malware researchers who created a tool called the TeslaDecoder. However, the scammers have made a number of tangible tweaks in the newer version which are likely to prevent users from recovering their files. Under these circumstances, any workaround is welcome. The instructions below should help troubleshoot this incident and get some of the frozen data back.

Automated removal of .ecc file virus

Owing to an up-to-date database of malware signatures and intelligent behavioral detection, the recommended software can quickly locate the infection, eradicate it and remediate all harmful changes. So go ahead and do the following:

1. Download and install the antimalware tool. Open the solution and have it check your PC for PUPs and other types of malicious software by clicking the Start Computer Scan button

Download .ecc files virus remover

2. Rest assured the scan report will list all items that may harm your operating system. Select the detected entries and click Fix Threats to get the troubleshooting completed.

Ways of non-ransom recovery of encrypted files

Cracking the crypto used by this ransom trojan is more of a science fiction thing rather than an attainable prospect for the masses. This is why the troubleshooting in predicaments of this sort is a matter of two approaches: one is to pay the ransom, which isn’t an option for many victims; and the other is to apply instruments that take advantage of the ransomware’s possible weaknesses. If the latter is your pick, the advice below is a must-try.

Backups can make your day

Not only are you a lucky person in case you’ve been backing up your most important files, but you’re also a wise and prudent user. This isn’t necessarily a resource-heavy activity these days – in fact, some providers of online services are allocating a sufficient size of cloud storage space for free so that every customer can easily upload their critical data without paying a penny. Having removed .ecc file ransomware, therefore, all you have to do is download your stuff from the remote server or transfer it all from an external piece of hardware if that’s the case.

Restore previous versions of encrypted files

A positive upshot of using this technique depends on whether or not the ransomware has erased the Volume Shadow Copies of the files on your PC. This is a Windows feature that automatically makes and keeps the backups of data elements on the hard drive as long as System Restore is enabled. The cryptoware in question is programmed to switch off the Volume Shadow Copy Service (VSS), but it has reportedly failed to in some cases. Checking one’s options regarding this workaround is doable in two ways: through the Properties menu of each file or by means of the remarkable open-source tool called Shadow Explorer. We recommend the software-based way because it’s automated, hence faster and easier. Just install the app and use its intuitive controls to get previous versions of the encrypted objects reinstated.
Shadow Explorer

Data recovery toolkit to the rescue

Some strains of ransomware are known to delete the original files after the encryption routine has been completed. As hostile as this activity appears, it can play into your hands. There are applications designed to revive the information that was obliterated because of malfunctioning hardware or due to accidental removal. The tool called Data Recovery Pro by ParetoLogic features this type of capability therefore it can be applied in ransom attack scenarios to at least get the most important files back. So download and install the program, run a scan and let it do its job.

Download Data Recovery Pro

Data Recovery Pro

Ransomware Prevention Tips

To avoid the TeslaCrypt ransomware and other file-encrypting infections in the future, follow several simple recommendations:

  • Toggle your email provider’s anti-spam settings to filter out all the potentially harmful incoming messages. Raising the bar beyond the default protection is an important countermeasure for ransom Trojans

  • Define specific file extension restrictions in your email system. Make sure that attachments with the following extensions are blacklisted: .js, .vbs, .docm, .hta, .exe, .cmd, .scr, and .bat. Also, treat ZIP archives in received messages with extreme caution

  • Rename the vssadmin.exe process so that ransomware is unable to obliterate all Shadow Volume Copies of your files in one shot

  • Keep your Firewall active at all times. It can prevent crypto ransomware from communicating with its C&C server. This way, the threat won’t be able to obtain cryptographic keys and lock your files

  • Back up your files regularly, at least the most important ones. This recommendation is self-explanatory. A ransomware attack isn’t an issue as long as you keep unaffected copies of your data in a safe place

  • Use an effective antimalware suite. There are security tools that identify ransomware-specific behavior and block the infection before it can do any harm.
These techniques are certainly not a cure-all, but they will add an extra layer of ransomware protection to your security setup.

Revise your security status

Post-factum assessment of the accuracy component in malware removal scenarios is a great habit that prevents the comeback of harmful code or replication of its unattended fractions. Make sure you are good to go by running an additional safety checkup.

Download TeslaCrypt .ecc file ransomware removal tool

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