More information about the GOZeus and Cryptolocker viruses and the steps you should take to stop the threat
IT support for schools
Search Joskos Solutions:
Phone Joskos Solutions: 0845-37-000-38
Joskos in the news

GOZeus and Cryptolocker Viruses spread across 15,500 PC's in the UK

The National Crime Agency (NCA) has issued a warning regarding two particularly ‘nasty’ pieces of malware software that they have recently detected, known as GOZeuS and Cryptolocker.

What makes this significant is the sophistication of these viruses and how widespread their infection has been – 15,500 computers in the UK alone are thought to have been infected.

The GOZeus virus works by gaining entry to vulnerable PC’s and discreetly scanning the hard drive for any files that contain personal data such as passwords and financial information. Any such information is then relayed back to the attacker to use in a time of their choosing.

The National Crime Agency (NCA) has temporarily taken control of the communication channels used by infected computers, but expects only a limited window of opportunity to ensure you are protected. The NCA anticipates that within a short time, the malware will be adapted to overcome the counter-measures that they have put in place.

This message is not intended to cause panic but rather warn our supported schools and inform them of proactive steps to take to ensure your network’s safety.

With this in mind, we have have compiled a short list of common-sense steps that we recommend you follow to ensure you are not at risk:

Steps to take to protect yourself against the GOZeus and Cryptolocker Viruses

System and security software:

  • Ensure your anti-virus is up-to-date
  • Ensure your anti-malware and firewall software are up-to-date
  • Ensure your operating system is up to date and has the latest security fixes in place
  • Don’t install untested software on any of your devices

Password management:

  • Avoid storing passwords on your computer
  • Change your passwords regularly and avoid using the same password in multiple places

Email management:

  • Do not open emails from unknown senders
  • Don't open suspicious attachments
  • Look out for Phishing emails, don’t click on the links
  • Make sure you keep backups of your work in another location in case the worst happens

If you require assistance or you have any concerns about your PC Environment, contact us at 0845 37-000-38 or email us at