Welcome to the Virus Encyclopedia of Panda Security.
Dialer.GUO is a dialer type malware. Dialers usually try to establish phone connections with high rate numbers, significantly increasing the phone bill of the affected user.
Dialer.GUO affects computers that use a modem to connect to the Internet, as the virus modifies the Dial-up network access settings. It changes the telephone number provided by the ISP (Internet Service Provider), which is a local-rate number, to a high-rate number.
It reduces the security level of the computer:
it changes the security settings of Internet Explorer, decreasing its security level.
Dialer.GUO uses the following propagation or distribution methods:
Dialer.GUO is easy to recognize, as it shows the following symptoms:
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