The security firm BitDefender has warned that the worm Win32 Worm. Prolaco is using the proximity of Halloween to steal users sensitive data such as account numbers, bank or email passwords, etc. The ultimate goal is to allow an attacker to take complete control of infected computer. This worm is distributed mainly through emails attached a purported greeting card for that party. However, that card, hidden in fact, a copy of itself so that if users open it, the teams will be infected.

Once on your computer, PROLAC weakens local security settings to carry out their malicious actions, according to BitDefender. Among them, the injection of code in the browser to record everything what the user types while browsing the Internet, thus accessing a password, usernames, etc

This worm all-in-one also opens a backdoor on the computer to receive commands from its creator. Thus it is able to perform various malicious actions such as changing registry entries or graphical settings (resolution, frequency), initiate or terminate processes, access to storage units, port scan, download / execute files from or to the memory, terminate antivirus processes, steal passwords from browsers and social networking accounts.

You can also steal cookies, connect to the FTP server, upload the data to FTP servers, change the service configuration or monitor USB port to spread more easily. Their ultimate goal is to install a remote access tool that allows an attacker to take complete control of the infected computer and dispose at will of the data stored on it.