Click Network and Sharing Center. In the left pane, click the link for Change advanced sharing settings. Select that box, and head back to the main menu. So if you are not streaming media from a local PC or other device on your network then you will be OK to disable it. I would be careful disabling UPnP though as other technologies that you use might rely on it. Please see your device manual for more information of email us the exact vendor name and model number for verification.
This is extremely convenient from a consumer perspective as it greatly decreases the complexity of setting up new devices. Unfortunately, with this convenience have come multiple vulnerabilities and large-scale attacks which have exploited UPnP. However, this convenience factor provides an opening for hackers. In the case of Mirai, it allowed them to scan for these ports, and then hack into the device at the other end.
Around since , QakBot infects computers, installs a key logger, and then sends banking credentials to remote Command and Control C2 servers. This is a stealthy approach in post-exploitation because it makes it very difficult for IT security to spot any abnormalities.
After all, to an admin or technician watching the network it would just appear that the user is web browsing — even though the RAT is receiving embedded commands to log keystrokes or search for PII, and exfiltrating passwords, credit card numbers, etc.
The right defense against this is to block the domains of known C2 hideouts. Of course, it becomes a cat-and-mouse game with the hackers as they find new dark spots on the Web to set up their servers as old ones are filtered out by corporate security teams. It has introduced, for lack of a better term, middle-malware, which infects computers, but not to take user credentials! In effect, the entire Web is their playing field!
When the Pinkslipbot is taking over a consumer laptop, it checks to see if UPnP is enabled. If it is, the Pinkslipbot middle-malware issues a UPnP request to the router to open up a public port. Ultimately, it is a matter of opinion. UPnP is convenient but does bring with it some quite serious security flaws, some of which cannot be mitigated by security solutions.
If you use port forwarding occasionally, then you should consider forwarding without the use of UPnP, which is entirely possible.
The heavy port forwarding users will have a decision to make. Are you willing to give up security for the convenience of UPnP? The chance that you will be compromised through UPnP is fairly small, but the consequences could be great. Whilst it is usually recommended that you disable UPnP on your router as many do out of principle , some have questioned whether this is necessary.
When UPnP first came onto the scene in , there were some glaring implementation issues that allowed configuration from the internet. This meant that anyone could open any port on it. Over the last decade, however, the software vulnerabilities in the routers have been patched numerous times with security in mind. UPnP, therefore, is not inherently dangerous if your router is up to date and has all the latest firmware updates, and your connected devices are free of malware.
UPnP becomes an issue if a connected device is infected with malware, as it can spread to your local devices. You can disable UPnP on your router if you want peace of mind. Many IT teams and tech-conscious people hate the idea of having to admit defeat to cyber-attackers. But the sad truth of the matter is that the attackers will always be able to navigate the security defences. You can keep an eye on what the attackers are after in the first place, the data. Monitor interactions with data using Data Security Platform that can detect anomalies and report on changes being made to critical files and folders, including copy events.
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