DNS hijacking, also referred to as DNS redirection, is a particular type of cyber attack, wherein a “bad actor” can redirect queries to a area identify server, by means of overriding TCP/IP settings often by means of hacking and modifying a server’s settings. DNS hijacking is regularly used for phishing – exhibiting pretend variations of websites that customers access and stealing information or credentials from unsuspecting users.
There are four principal methods employed by using hackers to carry out these DNS redirection attacks:
- Local DNS Hijacking – Hackers will install malware on an character user’s computer, allowing them to trade the local DNS settingds and redirect that consumer to malicious net sites.
- Router DNS Hijacking – Often times, your routers default password has by no means been changed. This provides an probability for hackers. Malicious actors can take over a router overwrite the traditional DNS settings, affecting all customers who are making use of that router.
- Man in the Middle Attack – This approach permits hackers to intercept verbal exchange between a person and the DNS server, altering the IP addresses of particular websites to redirect the person to a malicious site.
- Rogue DNS Server – In this instance, hackers will compromise a DNS server and alter the DNS records to redirect DNS requests to malicious sites that they control.
How to stop DNS Hijacking
- Good Security Software
The most necessary step is to make use of accurate safety software program that will prevent malware, such as DNS changers from being installed on user’s difficult drives.
- Install A Firewall
Whereas hardware-based firewalls are optimal, if you do no longer presently have a firewall, you can, at minimum, flip on your routers built-in firewall.
- Identify Resolvers on your Network
Any unneeded DNS resolvers have to be decommissioned. Required resolvers must be established at the back of the firewall with no access to users backyard of the organization.
- Restrict Access to Name Server
Utilizing each physical security, as nicely as a firewall, require multi-factor access.
- Patch Known Vulnerabilities
Hackers robotically seem for inclined DNS servers so make certain your patches are up to date.