[AusNOG] "Telstra" scammers

[Darren Moss]

4.4.1 A C/CSP must have processes in place to trace the origin of alleged Scam Calls, originating on its own network.

I'm guessing scammers can buy AU DIDs from overseas providers who would not be governed by these rules.



D.


-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of James Andrewartha
Sent: Friday, 19 February 2021 4:01 PM
To: Mark Andrews
Cc: AusNOG Mailing List
Subject: Re: [AusNOG] "Telstra" scammers

There is a new code (December 2020) relating to scam calls requiring carriers in the transit path to share information and disconnect customers who are originating scam calls:

https://www.commsalliance.com.au/__data/assets/pdf_file/0015/72150/C661_2020.pdf

So kick up a fuss with your provider.

On Fri, 19 Feb 2021, Mark Andrews wrote:

> Well at least with the NBN rollout basically done I haven’t heard from “Nicole from NBN”
> saying my phone is going to be cut off if I don’t do something in a while.
> 
> Whats needed is a simple way to report “the last call to this line was 
> a scam” so the calls can be traced back to their source along with a legislated requirement to follow
> the call trail back to its source.   I get several calls like this a day from
> “Telstra NBN”, “Mastercard Visa”, “E-Bay and suspicious iPhone 
> purchase”, etc.  It’s so common that my wife looks at the caller-id 
> and says “It’s your girlfriend calling again” from the number of times Nichole called.
> 
> Unfortunately I need to field calls from unknown numbers for new members for Scouts, etc.
> 
> I’ve even had them callback and ask why I hung up on them.  They 
> really don’t like it when I call the “crooks”, “criminals”, “scammers” etc.
> 
> Mark
> 
> > On 18 Feb 2021, at 21:50, Tim Dooley <tim.dooley at outlook.com> wrote:
> > 
> > While telecom companies such as Telstra are required to limit outbound calls from their SIP Trunks (ensuring you own the number you're trying to present), there are "IT" companies which offer SIP trunks without being a telco, this means they do not have to follow the same guidelines.
> > 
> > Just 2 days ago I became aware of a scammer presenting a school's main number on outbound calls, being part of the team supporting the schools phone system I can guarantee the system wasn't hacked at all.
> > There was no traffic from the school's phone system to Telstra during the time of the scam calls, however plenty of angry people were calling back yelling at the admin staff.
> > 
> > so basically yes, a VoIP seller (yet not an official telco) putting zero security on the calling number.
> > 
> > Cheers,
> > Tim
> > 
> > From: AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of Darren 
> > Moss <Darren.Moss at cloud365.com.au>
> > Sent: Thursday, 18 February 2021 3:45 PM
> > To: Bradley Amm <brad at bradleyamm.com>; AusNOG Mailing List 
> > <ausnog at ausnog.net>
> > Subject: Re: [AusNOG] "Telstra" scammers
> >  
> > How are they making calls into AU mobile networks ?
> >  
> > Surely they need a SIP service as a starting point.
> >  
> > Is it a VoIP seller not performing checks ??
> >  
> >  
> > Darren.
> >  
> >  
> > From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of 
> > Bradley Amm
> > Sent: Thursday, 18 February 2021 3:42 PM
> > To: ausnog at ausnog.net
> > Subject: Re: [AusNOG] "Telstra" scammers
> >  
> > Unfortunately not a lot can be done
> > I had a similar call today. Just blocked the numbers.
> > Probably a spoofed number as well
> >  
> >  
> > From: AusNOG <ausnog-bounces at lists.ausnog.net> On Behalf Of Kai
> > Sent: Thursday, 18 February 2021 12:34 PM
> > To: ausnog at ausnog.net
> > Subject: [AusNOG] "Telstra" scammers
> >  
> > Just had a scam call from a female operator, called from "0432 594 523" (probably a spoofed number), says her name is Selina from Telstra, that my modem has a virus. She gave her Telstra staff ID as C0527 (that's not a real Telstra staff ID, it starts with a 0 and it's too short) and hung up when I asked what her Team Leader or Manager's name and staff ID is.
> > 
> > So the "Telstra scammers" are still out there, trying to scam people.
> > Parasites.
> >  
> > Sent from my smartphone.
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net
> > http://lists.ausnog.net/mailman/listinfo/ausnog
> 
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742              INTERNET: marka at isc.org
> 
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
> 


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