Backdoor.Agent.sdf is the latest in malicious applications. Being a form of a Trojan-Backdoor, Backdoor.Agent.sdf is a dubious program with backdoor functionality. This means that Backdoor.Agent.sdf gives an attacker unauthorized access to a system. After gaining access to the computer, the attacker will then have control over the system without the knowledge or consent of the user. Backdoor.Agent.sdf severely compromises the security and privacy of a system as any changes can be made to the machine so it can be in control of the attacker and may be used for malicious purposes. Backdoor.Agent.sdf is a backdoor Trojan application which records keystrokes and sends them to a remote server. Backdoor.Agent.sdf tends to be installed under deceptive pretences, infiltrating the user’s PC without their approval or knowledge. Backdoor.Agent.sdf is particularly damaging to a computer system, once it has fully embedded itself within the PC’s system, therefore it is given a high priority security risk status by many computer analysts. The fact that Backdoor.Agent.sdf can easily enter any PC system via security exploits and flaws, most times without the user’s interaction, means that it is that much easier for Backdoor.Agent.sdf to enter the system and ensure the system’s security is immensely compromised. Risks which may affect the PC’s system functions include: the opening of illicit network connections, the use of polymorphic tactics to self-mutate, the disabling of already installed security software, modification of system files, and not forgetting the installation of additional malware. Furthermore, these security risks may also collect and transmit personally identifiable information (PII) without the user’s consent thus severely degrading the performance and stability of the computer. It is best to remove Backdoor.Agent.sdf as soon as it has been deteced within a system.