National Crime Agency
Two-week opportunity for UK to reduce threat from powerful computer attack
The NCA is today urging members of the public to protect themselves against powerful malicious software (malware), which may be costing UK computer users millions of pounds.
Action taken by the NCA to
combat the threat will give the UK public a unique, two-week opportunity to rid
and safeguard themselves from two distinct but associated forms of malware
known as GOZeuS and CryptoLocker.
Members of the public can protect themselves by making sure security software is installed and updated, by running scans and checking that computer operating systems and applications are up to date.
The NCA’s alert is part of one of the largest industry and law enforcement collaborations attempted to date. Activity in several countries, led by the FBI in the US, has weakened the global network of infected computers, meaning that action taken now to strengthen online safety can be particularly effective.
GOZeuS (also known as P2PZeuS) has been assessed as being responsible for the fraudulent transfer of hundreds of millions of pounds globally. Recent intelligence has suggested that more than 15,500 computers in the UK are currently infected, with many more potentially at risk.
By disrupting the system used by the infected computers to communicate with each other, and the criminals controlling them, this activity aims to significantly reduce the malware’s effectiveness.
Individuals in the UK may receive notifications from their Internet Service Providers that they are a victim of this malware and are advised to back up all important information – such as files, photography and videos. Businesses should also test their incident responses and business resilience protocols and work with their IT departments or suppliers to educate employees on the potential threat.
Get Safe Online is providing advice, guidance and tools on its website at www.getsafeonline.org/nca to help internet users understand more about the malicious software and how to protect themselves and their computers from attacks. A number of cyber security companies have supplied remediation tools, which can be accessed via Get Safe Online, to help clean up infected machines.
Andy Archibald, Deputy Director of the NCA’s National Cyber Crime Unit, said: “Nobody wants their personal financial details, business information or photographs of loved ones to be stolen or held to ransom by criminals. By making use of this two-week window, huge numbers of people in the UK can stop that from happening to them.
“Whether you find online security complicated or confusing, or simply haven’t thought about keeping your personal or office computers safe for a while, now is the time to take action. Our message is simple: update your operating system and make this a regular occurrence, update your security software and use it and, think twice before clicking on links or attachments in unsolicited emails.”
“Those committing cyber crime impacting the UK are often highly-skilled and operating from abroad. To respond to this threat, the NCA is working closely with law enforcement colleagues all over the world, and developing important relationships with the private sector.”
GOZeuS and CryptoLocker
Users are typically infected by clicking on attachments or links in emails which may look like they have been sent by genuine contacts and may purport to carry invoices, voicemail messages, or any file made to look innocuous. These emails are generated by other victims’ computers, who do not realise they are infected, and are used to send mass emails creating more victims.
If the file or link is clicked on an unprotected computer, GOZeuS is downloaded and installed and it will then link the victim’s computer to a network of already-infected machines, known as a BotNet.
The malware waits silently, monitoring the user’s activity until the opportunity arises to capture banking or other private information, which is then transmitted back to the criminals via the BotNet infrastructure.
Where a computer infected with GOZeuS turns out not to offer a significant financial reward, it can ‘call in’ CryptoLocker, to give the criminal controllers a second opportunity to acquire funds from the victim.
CryptoLocker works unseen in the background, encrypting the user’s files. Once that process is complete, the victim is presented with a pop-up telling them what has happened and a timer appears on their screen, which starts counting down. That is the time the victim has in order to pay a ‘discounted’ ransom, currently one Bitcoin (£200-£300 approximately) for UK users.
The NCA has been working with international law enforcement partners including the FBI and Europol, as well as partners from the banking, internet security and ISP sectors.
Information on ensuring security software is up to date can be found at Get Safe Online and Cyber Streetwise
Members of the public who think they have lost money through malware such as P2PZeus and Cryptolocker should report it to Action Fraud.
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