David H. Lipman wrote:

> From: "spviking" <Smp928s@gmail.com>
>
> | Yes Moe trin is correct this is what I was referring to. My Cousin uses
> | Time Warner's Road Runner here in New York and he got his recent
> | Verizon phone bill and found 600 dollars worth of calls to Cameroon,
> | Austria and Madagascar. The phone company told him it was likely modem
> | hijacking (what Moe Trin described). My cousin does not have his phone
> | line plugged into his computer at all and we cant figure out how this
> | malware could have effectively charged his phone bill. Sorry I was so
> | vague initially.
> |
> | Thanks again!
> |
>
> Yes. There are Trojan Dialers out there that when installed on a computer will place 900 or
> "off shore" phone calls to pay for services that can cost $40.00 US per phone call and make
> numerous phone calls.
>
> The term "modem hijacking" is non-standard.
> Trojan Dialers is the terminology. Those that call 900 number porn content are known as
> Porn Dialers.
>
> Now in relation to your original post. Once infected by a Dialer it doesn't make a
> difference if you are on Broadband or a Dial-Up (DUN) connection. However if you use DUN,
> it will own dial out when you are not using the DUN connection. If you are on Broadband you
> would need a traditional Plain Old Telephone System (POTS) modem (such as a FAX/modem).
> Cable modems and DSL modems are not traditional modems and can't make telephobne calls.
>
> Good article on Dialers.
> http://anti-spyware-review.toptenrev...e-dialers.html
>
> Now if a computer with Broadband has no POTS modem or it has one and NO telephone line is
> connected to the modem then a Trojan Dialer is a Red Herring and look to people using the
> telephone and not at malware on the PC.
>
> HTH
>

Are there Trojan dialers that have hijacked VoIP on a computer?