Cyber crime; the new world threat
According Wikipedia, Cyber crime are crimes that use computer networks or devices to advance other ends include: Fraud and identity theft (although this increasingly uses malware, hacking and/or phishing, making it an example of both “computer as target” and “computer as tool” crime)
Many countries have agencies that investigate cyber-crime. In U.S.A, Federal Bureau of Investigation (FBI) is the lead federal agency for investigating cyber attacks by criminals, overseas adversaries, and terrorists. In Nigeria, we have Economic and Financial Crime Commission (EFCC) and Independent Corrupt Practices Commission (ICPC) and United Kingdom, we have National Cyber crime Unit (NCCU) fighting cyber crime. The threat is incredibly serious—and growing. Cyber crime/cyber intrusions are becoming more commonplace, more dangerous, and more sophisticated. Many nation’s critical infrastructure, including both private and public sector networks, are targeted by adversaries. American companies are targeted for trade secrets and other sensitive corporate data, and universities for their cutting-edge research and development. Citizens are targeted by fraudsters and identity thieves, and children are targeted by online predators. Just as the FBI transformed itself to better address the terrorist threat after the 9/11 attacks, it is undertaking a similar transformation to address the pervasive and evolving cyber threat. This means enhancing the Cyber Division’s investigative capacity to sharpen its focus on intrusions into government and private computer networks.
Computer and Network Intrusions
The collective impact is staggering. Billions of dollars are lost yearly through cyber crime and repairing systems hit by such attacks. In advance countries, some take down vital systems, disrupting and sometimes disabling the work of hospitals, banks, and 9-1-1 services around the country. This can be from computer geeks who just want to brag, businesses trying to gain upper hand by hacking in their competitor websites, criminals trying to use your personal information and steal your money through online banking.
Today, these computer intrusion cases—counterterrorism, counterintelligence, and criminal—are the paramount priorities of world cyber program because of their potential relationship to international security.
There are many ways cyber crimes are carried out which include Ransomware
In a ransomware attack, victims—upon seeing an e-mail addressed to them—will open it and may click on an attachment that appears legitimate, like an invoice or an electronic fax, but which actually contains the malicious ransomware code. Or the e-mail might contain a legitimate-looking URL, but when a victim clicks on it, they are directed to a website that infects their computer with malicious software.
Hospitals, school districts, state and local governments, law enforcement agencies, small businesses, large businesses—these are just some of the entities impacted by ransomware, an insidious type of malware that encrypts, or locks, valuable digital files and demands a ransom to release them.
The inability to access the important data these kinds of organizations keep can be catastrophic in terms of the loss of sensitive or proprietary information, the disruption to regular operations, financial losses incurred to restore systems and files, and the potential harm to an organization’s reputation. Home computers are just as susceptible to ransomware and the loss of access to personal and often irreplaceable items— including family photos, videos, and other data—can be devastating for individuals as well.
Once the infection is present, the malware begins encrypting files and folders on local drives, any attached drives, backup drives, and potentially other computers on the same network that the victim computer is attached to. Users and organizations are generally not aware they have been infected until they can no longer access their data or until they begin to see computer messages advising them of the attack and demands for a ransom payment in exchange for a decryption key. These messages include instructions on how to pay the ransom, usually with bitcoins because of the anonymity this virtual currency provides.
Ransomware attacks are not only proliferating, they’re becoming more sophisticated. Several years ago, ransomware was normally delivered through spam e-mails, but because e-mail systems got better at filtering out spam, cyber criminals turned to spear phishing e-mails targeting specific individuals. And in newer instances of ransomware, some cyber criminals aren’t using e-mails at all—they can bypass the need for an individual to click on a link by seeding legitimate websites with malicious code, taking advantage of unpatched software on end-user computers.
The FBI doesn’t support paying a ransom in response to a ransomware attack. Paying a ransom doesn’t guarantee an organization that it will get its data back—there have been cases where organizations never got a decryption key after having paid the ransom. Paying a ransom not only emboldens current cyber criminals to target more organizations, it also offers an incentive for other criminals to get involved in this type of illegal activity. And by paying a ransom, an organization might inadvertently be funding other illicit activity associated with criminals.
So what does the FBI recommend? As ransomware techniques and malware continue to evolve—and because it’s difficult to detect a ransomware compromise before it’s too late—organizations in particular should focus on two main areas:
Awareness training for employees and robust technical prevention controls; and
The creation of a solid business continuity plan in the event of a ransomware attack.
Here are some tips for dealing with ransomware (primarily aimed at organizations and their employees, but some are also applicable to individual users):
- Make sure employees are aware of ransomware and of their critical roles in protecting the organization’s data.
- Patch operating system, software, and firmware on digital devices (which may be made easier through a centralized patch management system).
- Ensure antivirus and anti-malware solutions are set to automatically update and conduct regular scans.
- Manage the use of privileged accounts—no users should be assigned administrative access unless absolutely needed, and only use administrator accounts when necessary.
- Configure access controls, including file, directory, and network share permissions appropriately. If users only need read specific information, they don’t need write-access to those files or directories.
- Disable macro scripts from office files transmitted over e-mail.
- Implement software restriction policies or other controls to prevent programs from executing from common ransomware locations (e.g., temporary folders supporting popular Internet browsers, compression/decompression programs).
- Back up data regularly and verify the integrity of those backups regularly.
- Secure your backups. Make sure they aren’t connected to the computers and networks they are backing up.
How to Protect Your Computer
Below are some key steps to protecting your computer from intrusion:
- Keep Your Firewall Turned On: A firewall helps protect your computer from hackers who might try to gain access to crash it, delete information, or even steal passwords or other sensitive information. Software firewalls are widely recommended for single computers. The software is prepackaged on some operating systems or can be purchased for individual computers. For multiple networked computers, hardware routers typically provide firewall protection.
- Install or Update Your Antivirus Software: Antivirus software is designed to prevent malicious software programs from embedding on your computer. If it detects malicious code, like a virus or a worm, it works to disarm or remove it. Viruses can infect computers without users’ knowledge. Most types of antivirus software can be set up to update automatically.
- Install or Update Your Antispyware Technology: Spyware is just what it sounds like—software that is surreptitiously installed on your computer to let others peer into your activities on the computer. Some spyware collects information about you without your consent or produces unwanted pop-up ads on your web browser. Some operating systems offer free spyware protection, and inexpensive software is readily available for download on the Internet or at your local computer store. Be wary of ads on the Internet offering downloadable antispyware—in some cases these products may be fake and may actually contain spyware or other malicious code. It’s like buying groceries—shop where you trust.
- Keep Your Operating System Up to Date: Computer operating systems are periodically updated to stay in tune with technology requirements and to fix security holes. Be sure to install the updates to ensure your computer has the latest protection.
- Be Careful What You Download: Carelessly downloading e-mail attachments can circumvent even the most vigilant anti-virus software. Never open an e-mail attachment from someone you don’t know, and be wary of forwarded attachments from people you do know. They may have unwittingly advanced malicious code.
- Turn Off Your Computer: With the growth of high-speed Internet connections, many opt to leave their computers on and ready for action. The downside is that being “always on” renders computers more susceptible. Beyond firewall protection, which is designed to fend off unwanted attacks, turning the computer off effectively severs an attacker’s connection—be it spyware or a botnet that employs your computer’s resources to reach out to other unwitting users.
Hope this tips will help protect you from ransonware of cyber crime.
Cyber crime. Retrieved July 21th, 2017, from FBI, Federal Bureau of Investigation website, https://www.fbi.gov/investigate/cyber