When several variants of Bagle, such as Bagle.F, Bagle.G, Bagle.H, Bagle.I, Bagle.N and Bagle.O, spread via e-mail, they can reach the computer in an attached file with a ZIP format and password-protected. As these files are encrypted using that password, antivirus programs cannot analyze their contents in order to check that they are virus-free before they are decompressed. Therefore, when one of these files reaches the computer, the antivirus program is not able to warn the user that the file is infected. This could induce a false sense of security. However, they can be detected before the user is tricked into opening them. Panda products detect these files generated by the different variants of Bagle as W32/Bagle.pwdzip. |