My Windows 7 machine still has a nightly scheduled cronjob to run ccleaner in headless mode. I mostly used it to automatically securely wipe anything I put into

My Windows 7 machine still has a nightly scheduled cronjob to run ccleaner in headless mode. I mostly used it to automatically securely wipe anything I put into the Recycle Bin. Fortunately I don't think I've updated the program in 2-3 years, so it probably doesn't have any malware in it, but still, rather scary to think that was used to be a daily program for me is now infected. Which reminds me, I probably need to call my dad and anyone else I installed that for...