What does domain name hijacking mean? Comprehensive analysis of principles and hazards

in the context of digital operations, domain names are an important symbol of enterprises and individuals in the online world, carrying core functions such as traffic introduction and brand display. However, many webmasters and users have encountered the problem of domain names jumping to unfamiliar pages and unable to access target websites normally, which is likely to be caused by domain name hijacking. This article will disassemble the cyber security hazard of domain name hijacking from definition, principle, harm to prevention plan, and provide reference for everyone's network asset security.

What is domain name hijacking?

many people's cognition of domain name hijacking only stays in the inability to access the website normally, in fact, it is a targeted network attack behavior, with a clear operation logic.

1, the core definition of domain name hijacking

domain name hijacking refers to the behavior of attackers tampering with domain name resolution records or intercepting domain name access requests through technical means, and forcing them to jump to the malicious server or page designated by the attacker. Simply put, the "navigation route" of the domain name is maliciously modified, and the user cannot reach the original website after entering the correct domain name.

2, common trigger scenarios for domain name hijacking

domain name hijacking often occurs in the public WiFi environment, attackers use network vulnerabilities to intercept resolution requests; it may also be that domain name registrars or DNS servers are invaded, resulting in batch tampering of resolution records; after some user computers are implanted with malicious software, the local hosts file is modified, which will also lead to the problem of domain name hijacking.

What is the technical principle of domain name hijacking?

in-depth prevention of domain name hijacking, we must first understand the underlying technical logic of the attacker's attack, and understand this behavior from the root.

1, DNS resolution tampering principle

domain name needs to be converted into an Internet Protocol Address through the DNS server to be accessed. Attackers modify the IP resolution record corresponding to the domain name by invading the DNS server. When a user initiates a domain name access request, the DNS server will return the tampered malicious IP, thereby realizing domain name hijacking. This attack has a wide range of effects and may cause a large number of users to be unable to access the target website normally at the same time.

2, the principle of local hosts file tampering

the local hosts file of the computer has priority over the DNS server. The attacker modifies the hosts file of the user's computer through malicious software, adding a false domain name and IP correspondence in it. After the user enters the domain name, the system will directly jump according to the malicious record in the hosts file, causing the domain name to be hijacked. This attack is highly targeted and usually only affects a single user or local device.

What are the dangers of domain name hijacking?

domain name hijacking seems to be only abnormal access, but it will bring multi-dimensional losses to individual users and enterprises, and even cause chain risks.

1, direct harm to individual users

when the domain name is hijacked, users may be guided to phishing sites, these sites imitate the regular platform interface, inducing users to enter account passwords, bank card information and other sensitive content, resulting in personal property damage; some malicious pages will automatically implant virus software, steal the user's computer privacy data, such as chat records, photos and so on.

2, multiple hazards to enterprise users

for enterprises, domain name hijacking will directly lead to brand perception damage, users can not access the official website, will be mistaken for business operations problems; at the same time, a large number of accurate traffic will be malicious interception, into the attacker's income, resulting in business traffic loss and economic losses; if the e-commerce platform suffered domain name hijacking, may also lead to user order information leakage, facing legal risks and user trust crisis.

How to prevent and solve the domain name hijacking?

face the risk of domain name hijacking, it is equally important to prevent and solve in advance, and master the corresponding methods to effectively reduce losses.

1, domain name hijacking daily preventive measures

daily use of the network, avoid connecting to public WiFi without passwords; choose a regular domain name registrar and DNS service provider to turn on the domain name resolution locking function to prevent the resolution record from being tampered with at will; regularly update the computer system and antivirus software, scan and kill malicious software, avoid hosts file is modified; enterprises can deploy DNSSEC domain name security extension services to add digital signatures to the resolution record to prevent tampering.

2, the solution after the domain name is hijacked

once found that the domain name is hijacked, individual users can first check the local hosts file, delete abnormal domain name resolution records, and use antivirus software to scan the device comprehensively; enterprise users need to contact the domain name registrar and DNS service provider for the first time to verify whether the resolution records have been tampered with, apply for emergency recovery; at the same time, through official channels to issue announcements, inform users of the situation of domain name hijacking, guide users to visit the website through the temporary Internet Protocol Address, reduce brand loss.

To sum up, domain name hijacking is a very harmful network attack behavior, from personal privacy to corporate assets will be affected. This article from the definition, principle, harm to prevention plan, a comprehensive dismantling of the relevant content of domain name hijacking, hoping to help you establish a complete cognitive system, in the daily use of the network vigilance, do a good job of preventive measures, when encountering the problem of domain name hijacking can be timely and effective solution, guard their own cyber security.