#blighters — Public Fediverse posts

been checking last few days #blighters who are kicked out trying to get at our #VOIP #PBX - they don't even seem to be wanting to use the #SIP #trunks for getting free #telephone calls for actually talking to people (even spam/coldcalls), but appear to be edgelords attempting to use them for their own private vendetta and DDOS some individual/business phone as INVITE attempts are all to the same USA number(s)

I'm assuming its not someone trying to call their *own* phone to find when someone *has* left a trunk open, as that would surely create a data trail authorities could pick up on?

#hacking #cybercrime #cybersecurity

todays #blighters have given up with the French Embassy, but are bizzarely *constantly* trying to dial wrong numbers or what appear to be valid numbers (today, someone in Denmark appears to be being targeted) but with a *really* bizzare set of escape digits beforehand..

Either they are #vibecoding their #SIP #hacking scripts and have 0 idea of how telephone numbers are actually formatted, or they are hoping to get a reorder back from someone who *has* misconfigured their #trunk or left it insecure, and then use that one for actual calls..

Just over a month and I've tamed all the #trunks (with abundant snake heads at the end), made sure 1500+ #blighters are yeeted (with more trying every day) got inter #PBX #trunk working between on-premises and cloud #FreePBX - just waiting for porting of first analogue number to check this (and CLID presentation) works and then main office one can follow.

Took many late evenings, a lot of research of everything from old #BritishTelecom training manuals to some from Universities in India and the Indian telecom companies, and I've learned a lot more about #SIP even since 2008 when I built the first #VOIP #PBX used at work.

Thankfully #routers seem to handle #SIP over #NAT a lot better than they used to (even got an extension it working over #LTE with #Linphone)

#Telephony #Asterisk

Just over a month and I've tamed all the #trunks (with abundant snake heads at the end), made sure 1500+ #blighters are yeeted (with more trying every day) got inter #PBX #trunk working between on-premises and cloud #FreePBX - just waiting for porting of first analogue number to check this (and CLID presentation) works and then main office one can follow.

Took many late evenings, a lot of research of everything from old #BritishTelecom training manuals to some from Universities in India and the Indian telecom companies, and I've learned a lot more about #SIP even since 2008 when I built the first #VOIP #PBX used at work.

Thankfully #routers seem to handle #SIP over #NAT a lot better than they used to (even got an extension it working over #LTE with #Linphone)

#Telephony #Asterisk

Just over a month and I've tamed all the #trunks (with abundant snake heads at the end), made sure 1500+ #blighters are yeeted (with more trying every day) got inter #PBX #trunk working between on-premises and cloud #FreePBX - just waiting for porting of first analogue number to check this (and CLID presentation) works and then main office one can follow.

Took many late evenings, a lot of research of everything from old #BritishTelecom training manuals to some from Universities in India and the Indian telecom companies, and I've learned a lot more about #SIP even since 2008 when I built the first #VOIP #PBX used at work.

Thankfully #routers seem to handle #SIP over #NAT a lot better than they used to (even got an extension it working over #LTE with #Linphone)

#Telephony #Asterisk

Just over a month and I've tamed all the #trunks (with abundant snake heads at the end), made sure 1500+ #blighters are yeeted (with more trying every day) got inter #PBX #trunk working between on-premises and cloud #FreePBX - just waiting for porting of first analogue number to check this (and CLID presentation) works and then main office one can follow.

Took many late evenings, a lot of research of everything from old #BritishTelecom training manuals to some from Universities in India and the Indian telecom companies, and I've learned a lot more about #SIP even since 2008 when I built the first #VOIP #PBX used at work.

Thankfully #routers seem to handle #SIP over #NAT a lot better than they used to (even got an extension it working over #LTE with #Linphone)

#Telephony #Asterisk

Just over a month and I've tamed all the #trunks (with abundant snake heads at the end), made sure 1500+ #blighters are yeeted (with more trying every day) got inter #PBX #trunk working between on-premises and cloud #FreePBX - just waiting for porting of first analogue number to check this (and CLID presentation) works and then main office one can follow.

Took many late evenings, a lot of research of everything from old #BritishTelecom training manuals to some from Universities in India and the Indian telecom companies, and I've learned a lot more about #SIP even since 2008 when I built the first #VOIP #PBX used at work.

Thankfully #routers seem to handle #SIP over #NAT a lot better than they used to (even got an extension it working over #LTE with #Linphone)

#Telephony #Asterisk

For some days now I've seen a sustained attempt by #cybercriminals to exploit misconfigured / insecure #VOIP phone systems to make multiple #telephone calls to the #French #Embassy in #London (+44 20 7073 1000).

They are not getting anywhere on two systems I run as the #security software knocks back the INVITE attempts along with all the other various #blighters , but this traffic stands out as all the attempts are to this number - it doesn't look like the perps are searching for an open trunk to misuse for spam calls or even reselling minutes on other peoples systems, but a deliberate attempt to overwhelm the switchboard at the Embassy.

Not sure if I should report this somewhere, or its presumably already been noticed by #NCSC and #DGSE ?