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  • CryptoLocker Malware Removal


    Cryptolocker is one of the worst malware ever to be released in recent times. The infection is now said to be fast spreading mainly through email file attachments. Unfortunately, not all security software is capable of preventing or block the infection from getting inside the computer. This infection encrypts its victim's files, and then refusing to provide the unlock key unless a payment of $300 is made via Bitcoin or a prepaid cash voucher.

    Type: Trojan
    Infection Length: 346,112 bytes
    Systems Affected: Windows XP, Windows Server 2008, Windows 7, Windows Vista, Windows Server 2003, Windows 2000


    The data once encrypted cannot be viewed by anyone including the computers owner. You need a decryption key to decrypt the data. A message will displayed offering help in decrypting if a payment is made. So normally victim tempted to pay the amount to recover the files. Some victimized users reported that some pieces of malware will keep their promise, decrypting and returning your files once you pay but there is no guratee for that and not recommended.


    Since it demands money, this malware can also be included under Ransomware category .

    Removig Ransomware

    If the infection prevents you from entering windows or running programs, we can try system restore.

    To use System Restore to restore Windows XP to a previous state, follow these steps:

    *Log on to Windows as an administrator.
    *Click Start, point to All Programs, point to Accessories, point to System Tools, and then click System Restore.

    To use System Restore to restore Windows Vista,7 or 8

    *Restart the machine and keep tapping on F8 button
    *This action should bring up the System Recovery Options, from there we can do the restore.

    If System Restore doesn’t help and you still can’t get into Windows to remove the ransomware, try running a virus scanner from a bootable disc or USB drive; It is recommended to do the scan in safe mode.

    We will be able to recover the files if they are just hidden and not encrypted; if it is still encrypted we won't be able to do much on that.

    Open Computer, press the Alt key, select Tools, and click Folder Options. On the View tab, select Show hidden files, folders, and drives, and then click OK.

    If we are able to find the data, then its great. Navigate to C:\Users\, and open the folder of your Windows account name. Then right-click each folder that’s hidden, open Properties, uncheck the Hidden attribute, and click OK. That's it!


    Preventing CryptoLocker and Malware infections

    1.Install a good Antivirus utility and keep Windows and browser-related components (Java, Adobe, and the like) updated.
    2.Keep your browser clean to prevent adware invasions that could lead to malware infections.
    3.Always be wary of unexpected email attachments and spam. (CryptoLocker spreads via .zip files sent as email attachments, for example.)
    4.Take back up of your important data on a regular basis.
    5.Run a full system virus scan on daily or weekly.
    Last edited by ranjith; 28th June 2014, 03:54 PM.
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