An Evil Maid Attack refers to a type of cyberattack where a malicious actor gains physical access to a target device or computer. The term “Evil Maid” comes from the concept that someone with malicious intent could compromise your device while you’re not present.
While this might sound like something out of a spy thriller, Evil Maid Cyberattacks are a real and increasingly common threat. Despite having strong information security protocols in place, attackers are finding clever ways to exploit physical access to sensitive devices. As a result, it’s crucial for organizations to understand the risks and take proactive measures to protect against Evil Maid Attacks.
The Evil Maid Attack in Action
In our video, we demonstrate how an evil maid attack scenario can impact global organizations. The maid vacuum cleaner is responsible for taking control of the endpoint. Well, it is the device hidden inside that is doing the damage, but the vacuum enables deception. The Rogue Device, referred to as a Raspberry Pi, is small enough to conceal within the vacuum cleaner. And, when in proximity to the target laptop, provides the perpetrator with remote control of said laptop through its wireless capabilities.
Hardware attacks, like the evil maid attack, require the attacker to gain some form of physical access. In this scenario, the vacuum cleaner serves as the perfect vessel for providing that access. So, the next time you’re near a vacuum cleaner, take a moment to consider whether it’s just cleaning the floor or if it’s covertly controlling a nearby device, too.
Insider Threats and Social Engineering in Cybersecurity
The Evil Maid Attack scenario highlights two significant threats to all organizations: insider threats and the social engineering techniques used by bad actors. Let’s start with insider threats. Certainly, someone must have brought the vacuum concealing the device. While the vacuum doesn’t have the ability to intrude alone, it can help facilitate a data breach.
Insider Threats in CyberAttacks
Insider threats are the greatest cybersecurity risk to organizations. According to a report on Insider Threats by Fortinet, nearly 70% of organizations think insider attacks are becoming more frequent. Furthermore, research found that businesses in the US encounter around 2,500 internal security breaches daily.
Evil Maid Attacks are often linked to insider threats, where an employee or temporary worker (such as cleaning staff) might intentionally or unintentionally bring harmful devices into the workplace. Despite the low percentage of malicious insiders causing internal incidents (5%), their knowledge and access can lead to significant damage. According to Fortinet, 60% of enterprises are most concerned about malicious insiders when asked about their biggest insider cybersecurity risks.
For half of organizations, service providers and temporary workers are the most threatening type of insider risk. Cleaning staff are not typically deemed a security risk and therefore do not raise alarms when doing their job. This of course, gives them the perfect disguise.
But it is also possible that the cleaning maid unwittingly brought the device into the company’s premises. How, may you ask? That brings us to the next vulnerability, social engineering of cyberattacks.
Social Engineering of Cyber Attacks
According to cyber observer, 30% of cyber-attacks rely on social engineering. This technique is one of the most common causes of data breaches. As hardware based attacks require physical access, social engineering techniques can provide external perpetrators with such access. For example, an evil twin attack is a type of WiFi network attack where an attacker sets up a rogue access point that mimics a legitimate network. The rogue access point typically has a name and configuration that is very similar to the legitimate network. This type of attack relies heavily on social engineering. The perpetrators can intercept the communication between the victim and the legitimate access point.
Research from Purplesec on social engineering techniques found that 56% of attacks are carried out by malicious outsiders.
Evil Maid Attack: A Social Engineering Tactic
In an Evil Maid Attack scenario, a malicious actor might use social engineering tactics, such as blackmail, to compel an innocent cleaning maid to unknowingly bring a device into the office. However, attackers may also disguise themselves as an evil maid or cleaning staff to gain internal access to the office more easily, leveraging social engineering once again to bypass security measures.
How many times have you raised security concerns when you’ve seen unfamiliar cleaning personnel in the office? My guess is probably zero. However, by the time you finish reading this, we hope you’ll become more aware and cautious about those around you—even if you think they’re not posing a security risk. Evil Maid Attacks are often unexpected and can happen when least anticipated.
Disclaimer: we are not suggesting that you bring up a security concern every time you see cleaning maid around the office. But we do want to highlight the importance of being vigilant of everyone around you.
The Role of Rogue Hardware in Evil Maid Attack
What exactly is the Raspberry Pi, the sneaky little device involved in Evil Maid Attacks? Originally designed as an educational tool to teach the basics of computer science, the Raspberry Pi can be manipulated on the Physical Layer to serve malicious purposes. In the Evil Maid Attack scenario, this device operates on the wireless USB interface and hides its true identity by impersonating a legitimate Human Interface Device (HID). The lack of visibility at the physical layer allows such attacks to go undetected, enabling attackers to steal sensitive information or carry out data exfiltration without triggering alarms.
The Raspberry Pi is just one example of the many rogue devices used in hardware attacks. These devices are inherently covert and can evade traditional firewall protections and other information-systems security measures. Hackers use them to execute cybercrime activities such as man-in-the-middle (MiTM) attacks, denial-of-service (DoS) attacks, and more. If an attack occurs behind the scenes and the rogue device is undetected, the organization’s personal information and credentials could be compromised.
Protecting Against Evil Maid Attack
Sepio’s platform provides a powerful solution to the critical gap in network device visibility, protecting organizations from threats like Evil Maid Attack. As the leader in Rogue Device Mitigation, identifies, detects, and handles all peripherals. No device goes unmanaged. Sepio uses physical layer technology and machine learning to verify the electrical data characteristics of all devices and compares them against known data fingerprints. In doing so, Sepio provides organizations with ultimate device visibility and detects vulnerable devices and switches within the infrastructure.
In addition to the deep physical layer visibility, a comprehensive policy enforcement mechanism allows the administrator to define a strict, or more granular, set of rules for the system to enforce. When a device breaches the pre-set policy, Sepio automatically initiates a mitigation process to block unauthorized hardware or rogue devices.
Attackers may find deceptive ways to implant a rogue device within a target’s premises, but with Sepio’s technology, they’ll get no further. While a vacuum cleaner might hide a rogue device from human eyes, Sepio’s advanced visibility uncovers every hidden threat.
See Every Asset. Mitigate Every Risk
With Sepio, you gain control of your asset visibility, ensuring that no rogue device can infiltrate your network. Security experts and organizations can utilize our asset risk management solution to prioritize cyber threats, security vulnerabilities, and risks such as an Evil Maid Attack.
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