Trojan.Agent refers to a generic Trojan malware detection. It is used for detections that are either associated with no specific malware families or not enough information is available to pinpoint the malware family.
Trojan.PasswordStealer is a generic detection for applications that may run in the background and silently collect information about the system, connected users, and network activity. Trojan.PasswordStealer may attempt to steal stored credentials, usernames and passwords and other personal and confidential information. This information may be transmitted to a destination specified by the author. Trojan.PasswordStealer may allow an attacker to install additional software to the infected machine, or may direct the infected machine to participate in a malicious botnet for the purposes of sending spam or other malicious activities.
Trojan.PasswordStealer may run silently in the background and may not provide any indication of infection to the user. Trojan.PasswordStealer may also disable Antivirus programs and other Microsoft Windows security features.
Trojan.PasswordStealer may be distributed using various methods. This software may be packaged with free online software, or could be disguised as a harmless program and distributed by email. Alternatively, this software may be installed by websites using software vulnerabilities. Infections that occur in this manner are usually silent and happen without user knowledge or consent.
Malwarebytes protects users from Trojan.PasswordStealer by using real-time protection.
Malwarebytes can detect and remove many Trojan.Password infections without further user interaction.