Win32.Chupa would fall under the category of Backdoor Trojan. This means that it has both backdoor and Trojan characteristics. It can enter secretly (its Trojan traits) and will then open a backdoor, which allows an additional intruder to enter. This can be extremely dangerous because it is possible that this intruder can steal passwords, logins and other vital information.
Remove at Once
Remove Win32.Chupa manually by killing all running processes and removing any related files.
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