VoIP/SIP Brute-Force Protection for WindowsAn Internet-facing VoIP/PBX server attracts automated scanners looking for valid extensions and weak SIP passwords. A compromised account can leave your business paying for unauthorized international or premium-rate calls. Even unsuccessful password attacks can consume server resources and fill your logs with repeated registration and authentication requests. Attackers can probe extension numbers before trying passwords for the accounts they find. The following SIP server log excerpt shows repeated REGISTER requests targeting extensions 100, 101 and 102 from the same remote IP address: View full SIP logRdpGuard monitors SIP authentication on your Windows server and automatically blocks IP addresses after repeated failed attempts. You control the detection limit and blocking period, helping reduce repeated password attacks and the risk of toll fraud. Supports unencrypted SIP over IPv4 (TCP and UDP) on Windows servers. See the setup guide for requirements and configuration. For 64-bit Windows and Windows Server. Supported Windows versions. See AlsoHow to enable and configure VoIP/SIP brute-force protection - choose a traffic monitoring method, select the network adapter and set your SIP ports. | RdpGuard 10.3.7 Free Trial RdpGuard protects:
Our customers say "This sotware is really great. It's a relief. Because my server is constantly under attack. Thanks RdpGuard" - Joaquim De Sousa Marques "Nice product. I used to implement something similiar in a low-tech and cumbersome manner via a script called TSBlock (not mine). This makes it much easier and is well worth the pricetag for SMB's." - J. Johnson "Absolutely amazed at your product. We are a church in the North Dallas area, and I discovered this morning multiple failed logon attempts via our Remote Access Server. A friend suggested your product, so I immediately downloaded the trial. It had a list of about five blocked IP addresses in minutes, and that was enough to lead me to push the BUY button. Over the past 10-15 minutes the list is now about thirty with at least a third being international attempts to break into our system. Thanks for a great product. You may have just saved us much grief." - John Hallford "Love the software. RDP on our Windows servers is just ridiculous. We would block it in the router but we have lots of old-time customers that would have issues." - Scott Hirsch "Love the software! Makes it easier than tailoring VB Scripts!!" - Nick Brennan "It's a great product - really stopping those RDP attackers :-)" - Dave, UK "First of all: Your application is very (!!!) useful and I like it very much securing my 2012 R2 server. RdpGuard is the best solution, I found on the market and after 10 minutes of testing it I ordered the fully-featured version. :-)" - Carsten Baltes Our Other Products |