Help Remove TROJ_POSHCODER.A Ransomware, Cryptolocker Variant Removal

TROJ_POSHCODER.A Uses Windows PowerShell to Encrypt Files

TROJ_POSHCODER.A is a recently discovered ransomware variant currently being served up Trojan.Cryptolocker that will be able to encrypt all data files on the compromised system. The TROJ_POSHCODER.A ransomware Trojan is carefully crafted by hijackers to attack computers and grab banking details over the cyber world. TROJ_POSHCODER.A takes advantage of the Windows PowerShell and arrives on the targeted system as a file downloaded unsuspectingly by users. By hiding in such Windows PowerShell program the TROJ_POSHCODER.A ransomware Trojan can infiltrate on the objective computer without any consent. In a word, using such Windows PowerShell program makes TROJ_POSHCODER.A easier to exploit AES to encrypt the files and RSA4096 public key cryptography as the mechanism to exchange the AES key. And then the TROJ_POSHCODER.A ransomware Trojan can compile malicious registry entries to the victimized system. By definition, the TROJ_POSHCODER.A ransomware Trojan is a special nasty version of the Cryptolocker, being used to spread the Cryptolocker code to attack machines around the worldwide web, encrypt their files, and demand one Bitcoin to recover data files.

TROJ_POSHCODER.A Ransomware: Instruction to Unlock Files

TROJ_POSHCODER.A ransomware Trojan virus can infiltrate on the targeted computer without any consent as it can conceal its existence by being bundled with freeware, shareware or web plugins. In this case, TROJ_POSHCODER.A can bypass any normal detection of anti-virus program and slip into targeted system without any need of user’s permission. Once users become attacked, the TROJ_POSHCODER.A ransomware Trojan will scan targeted system and encrypt various type of files including Microsoft Word, Excel, Adobe illustrator and PDF files. The TROJ_POSHCODER.A ransomware Trojan rename those detective files to the form of [filename].POSHCODER’ and insert UNLOCKYOURFILES.html into each folder. After that, the ransomware Trojan will display a warning message declared victimized users need install a Multibit application and follow instruction on how to recover the data. During the process, victimized users will be forced to have their own Bitcoin-wallet account for 1 Bitcoin. However, the truth the decryption key doesn’t exist. Attackers never are conscience. Your computer is still infectious though have finished purchasing the required Bitcoin.

How to remove the he TROJ_POSHCODER.A ransomware Trojan completely and recover all data files? You can ask for professional help by Live Chat with VilmaTech 24/7 Online Experts now.

Steps to Remove the TROJ_POSHCODER.A Ransomware from Infected System

1. Boot the infectious computer with safe mode with networking now.

A: For Windows 8

• Reboot computer and access to the desktop.
• After reach desktop, press the Ctrl+ Alt+ Del combination key.
• Open Switch User interface

• From the pop-up page, hold down the “Shift” key, simultaneously click on “Shut down” button
• Choose Restart option from the pop-up page.

• C hoose “Troubleshoot” from the next page.
• Select ‘Advanced Options’
• Choose ‘restart,’ under Startup Settings.
• Press F5/5 key and highlight Safe Mode with Networking.

B: For Windows 7, Windows Vista, Windows XP

• Shut down the infected computer first.
• Reboot infectious system but before Windows launches on always press F8 key.
• Windows Advanced Options may pop-up.
• Choose Safe Mode with Networking Option.
• Press Enter key to reach the desktop.

2. Remove TROJ_POSHCODER.A from Control Panel

• Reach the desktop in safe mode with networking now, press Ctrl+ Esc+ Shift or Ctrl+ Alt+ Del
• Open Windows Task Manager and choose Process tab
• And then choose malicious process about the TROJ_POSHCODER.A virus
• Click End Process button.

• Click the Start button and open control panel.
• For Windows 8 user should reveal Apps view first and search control panel from the search box.

• After reach the control panel interface, for Window 8, Windows 7 and Windows Vista choose Uninstall a program.
• For Windows XP, choose Add/ Remove Programs.
• From next pop-up page, choose malicious program related with TROJ_POSHCODER.A
• Click Uninstall or Remove option.

• Next need choose Remove or Uninstall again. Follow prompting wizard to get TROJ_POSHCODER.A removed from infected computer.

3. Remove TROJ_POSHCODER.A Rasomware Leftovers

• Start Control Panel window again, click Appearance and Personalization link.

• Open the Files and Folder Option.
• Choose Folder Options category.
• Choose Show hidden files and folders option.

• Select the “View” tab. Check “Show hidden files, folders and drives.”
• Uncheck “Hide protected operating system files. Click Ok..
• Got to the local disks and remove all virus files related with TROJ_POSHCODER.A.
• The files are for reference only: %User Temp%\Quest Software\PowerGUI\{GUID}
• And then delete the virus registry entries, and press Windows + R.
• Type regedit in Run box and press Ok.
• Reach the Registry Editor.
• Click File and find the TROJ_POSHCODER.A and then delete all detected entries.
• Refer to the registry entries:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run{GUID} = “”
HKEY_CURRENT_USER\Software\Microsoft{GUID}0 = “”
HKEY_CURRENT_USER\Software\Microsoft{GUID}1 = “”

• Reboot the infectious machine.

Recover Data Files with System Restore

1. Create System Restore Point first. You may refer to the below video regarding on creating system restore point.

2. Type system restore in the search bar, open up the control panel and select “System and Security.” Then select “Advanced System Settings.” Click on the “System Protection Tab.” Click on System Restore button.

3. Click on “Next” to continue. Follow on-screen introduction to finish the restore process.
4. Reboot Computer.

Conclusion

TROJ_POSHCODER.A ransomware Trojan now perform a different routine in warning message and stealing funds from cryptocurrency wallets. TROJ_POSHCODER.A ransomware now uses Windows PowerShell feature to encrypt files on the targeted systems, as doing so can such TROJ_POSHCODER.A ransomware be easier to perform encryption activities. The main way utilized by attackers to infect targeted machine is through botnet of infected machine, which is capable of reprogramming so that also encrypts data on any connected network drives. Unalike FBI ransomware, which focuses on locking victimized users from accessing to the infectious Windows and extorting fine. TROJ_POSHCODER.A Ransomware Trojan, however, mainly encrypts victims’ files and demanding 1 Bitcoin to recover them. Anyhow finishing purchase required on the TROJ_POSHCODER.A warning message can’t resolve the trouble definitely. The TROJ_POSHCODER.A ransomware can encrypt files again if you can’t remove it from the infectious machine completely. If you still need more help to definitely remove the TROJ_POSHCODER.A ransowmare Trojan from the infected system and recover data files, you can live chat with VilmaTech 24/7 Online Experts

Published & last updated on June 4, 2014 by Erik V. Miller