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Just Install Microsoft Security Essential and run Full scan. It can detect cryptolocker virus.
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Just Install Microsoft Security Essential and run Full scan. It can detect cryptolocker virus.

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<a href="http://mywot.com" rel="ugc">http://mywot.com</a> &nbsp; is an addon for most browsers that alerts the user about questionable sites.
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http://mywot.com [http://mywot.com]   is an addon for most browsers that alerts the user about questionable sites.

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Somebody in a small network inadvertently downloaded and executed a Cryptolocker virus program.<br />
Before I came into the picture they decided to pay the attackers, and they unlock the files.<br />
<br />
Now they have called me to provide them with a clean up process, so that they can make sure no traces of the cryptolocker are left on any computer in the network.<br />
<br />
Can you please provide me with the best practices to clean up a network after a Cryptolocker attack?<br />
<br />
And also the best practices to keep them to being attacked again?
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Somebody in a small network inadvertently downloaded and executed a Cryptolocker virus program.
Before I came into the picture they decided to pay the attackers, and they unlock the files.

Now they have called me to provide them with a clean up process, so that they can make sure no traces of the cryptolocker are left on any computer in the network.

Can you please provide me with the best practices to clean up a network after a Cryptolocker attack?

And also the best practices to keep them to being attacked again?

What are the best practices to clean up a network after a Cryptolocker attack?

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.

Encryption

A vulnerability is a weakness which allows an attacker to reduce a system's information assurance. Vulnerability is the intersection of three elements: a system susceptibility or flaw, attacker access to the flaw, and attacker capability to exploit the flaw. To exploit a vulnerability, an attacker must have at least one applicable tool or technique that can connect to a system weakness, known as the attack surface. Vulnerability management is the cyclical practice of identifying, classifying, remediating, and mitigating vulnerabilities. Other vulnerabilities include security risks, security defects and constructs in programming languages that are difficult to use properly.

Vulnerabilities

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.

Security

Sophos develops products for communication endpoint, encryption, network security, email security and mobile security as well as unified threat management. Products include hardware (or software virtual appliance) network firewalls including web browsing protection, AntiSpam filters and antivirus protection, encryption and data protection, web filter, antispam and mobile content and device management tools.