A Trojan.Win32.Malgent.Msr infection may cause symptoms like slow system performance, unexpected pop-ups, unauthorized changes to system settings, or the appearance of unknown programs. In some cases, sensitive data may be compromised or unusual network activity may occur. To confirm the presence of this Trojan, run a full system scan with a reliable anti-malware tool. For more details on detection and removal, visit: https://gridinsoft.com/blogs/trojan-win32-malgent-msr/.