cPGuard is described as 'essential security addon for web hosting servers to help administrators to fight against malware threats and injections. We have carefully crafted each of its components to make sure that the system will be useful and affordable to all'. There are five alternatives to cPGuard for Linux, Windows, Mac and BSD. The best alternative is Clam AntiVirus, which is both free and Open Source. Other great apps like cPGuard are kicom (Free, Open Source), Linux Malware Detect (Free), cPMalScan (Paid) and Pyxsoft Antimalware (Paid).
KicomAV is an open source (GPL v2) antivirus engine designed for detecting malware and disinfecting it. In fact, Since 1995, it has been written in C/C++ and it was integrated into the ViRobot engine of HAURI, 1998. I decided to re-create a new KicomAV.
Integrated malware scanner for cPanel/WHM servers with intelligent scanner engine able to detect malwares which other scanner easily miss. This is the only scanner with cPanel interface which allows cpanel users can scan their account themselves.
Pyxsoft Anti Malware will scan your server in order to find all malware installed. The definitions includes more than 4.000.000 known malware signatures, including perl files, PHP Shells, PHP uploaders, PHP downloaders, IRC bots and Mass Mailers.