There are no guarantees
or shortcuts when it comes to malware removal, especially when dealing with backdoor Trojans
that can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. These types of infections are dangerous
because they not only compromise system integrity
, they have the ability to download even more malicious files. Rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. They are used by backdoor Trojans to conceal its presence (hide from view) in order to prevent detection of an attacker's software and make removal more difficult. Remote attackers use backdoors as a means of accessing and taking control of a computer that bypasses security mechanisms. This exploit allows them to steal sensitive information like passwords, personal and financial data which is then sent back to the hacker.
The severity of infection
will vary from system to system, some causing more damage than others. The longer malware remains on a computer, the more opportunity it has to download additional malicious files which can worsen the infection so each case should be treated on an individual basis. Severity of system infection will also determine how the disinfection process goes. Since infections and severity of damage will vary, it may take several efforts with different, the same or more powerful security scanners/tools to do the job. Even then, with some types of malware infections, the task can be arduous.