In today's episode of "Can It Run Doom": DNS fucking TXT records.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 this is similar to how DeCSS (DVD decryption code) was distributed over 25 years ago when there was an attempt to suppress it online.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 Not DOOM, but this has been one of Infoblox's favorite sales demos for ages.
"Check out all this information we can exfiltrate from your network directly from a web browser via only DNS queries" always gets people's attention
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0@infosec.exchange oh we may be able to make it worse...doom via standards-compliant dns direct content serving (assuming https://datatracker.ietf.org/doc/draft-dns-content-delivery/ goes through)
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 I was at Defcon 12 when Kaminsky demoed sending voice over DNS. Glad to see the tradition continue.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 interesting vector to deploy malware
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 Think of all the times you've wanted to take a shotgun to DNS. Now you can. Or a chainsaw.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
DNS: "Tell them it was me."
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 DOOM over DNS, never thought I'd see the day.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 in today's episode of "this is lazy ai vibe-coded slop":
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@k3ym0 in today's episode of "this is lazy ai vibe-coded slop":
@EeveeEuphoria@translunar.academy @k3ym0@infosec.exchange when i don't know C# i go to msdn.microsoft.com and figure things out instead of doing anything i can to avoid learning. Kids these days
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@k3ym0 in today's episode of "this is lazy ai vibe-coded slop":
@EeveeEuphoria@social.translunar.academy @k3ym0@infosec.exchange Screams and fades into dust.
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@k3ym0 in today's episode of "this is lazy ai vibe-coded slop":
@EeveeEuphoria oh noooo
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@k3ym0 you may already know this, but on a related note you can tunnel basically any IPv4 traffic over DNS: https://code.kryo.se/iodine/
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@k3ym0 "Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well."
Doesn't work anymore for a decade. Most serious companies don't allow DNS queries to servers outside of their network. The only endpoints allowed to do that are the corporate internal DNS.
With DoH I'm also not sure that will work because of the corporate web proxy.To make data exfiltrations there are so many easy ways to do so ... Why spending time to make something over DNS when you can simply upload the files or exploit USB keys, it's not hard to bypass FW and EDR policies.
Most serious companies don't allow DNS queries to servers outside of their network.
Oh my sweet, sweet, child. If only this were true. I could name-drop several multi-billion $ enterprise orgs that still don’t do this.
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@kajer @k3ym0 i was thinking of BookmarkFS
https://github.com/velzie/bookmarkfs -
DNS outbound tends to be allowed even when other protocols are not. If you run your own DNS server you can use DNS to tunnel any traffic you want. @sabik @arichtman @k3ym0
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 I'd be shocked if most blue teams are competent enough to figure out how to prevent the internal network from using DNS over HTTPS so they can inspect most DNS traffic now anyway -
In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 paging @vampiress, @voltagex, etc.
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In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0
“Those engineers are spinning in their graves”
1987 was less than 40 years ago and as far I can tell the author is still alive and active. -
In today's episode of "Can It Run Doom": DNS fucking TXT records.
Some absolute madlad (cough Adam Rice cough) compressed the entire shareware DOOM WAD, split it into around 1,964 chunks, shoved them into Cloudflare TXT records, and wrote a PowerShell script that reassembles and runs the whole goddamn game from DNS queries alone. Nothing touches disk. The DLLs are in DNS. THE FUCKING DLLS ARE IN DNS.
RFC 1035 was written in 1987. Those engineers are spinning in their graves fast enough to generate municipal power.
Bonus: this is a fully functional globally-distributed covert data exfil channel that your NGFW will never fucking see if you're not doing deep DNS inspection. Sleep well.
blog: https://blog.rice.is/post/doom-over-dns/
repo: https://github.com/resumex/doom-over-dns
Also lmao @ every blue team that has never once looked at their DNS query volume. How's that DLP policy working out for you.
It was always DNS.
@k3ym0 While DOOM is a pretty effective demo, I can't help but feel NES ROMs, which run anywhere from 24KB to 512KB would have been even more effective (and would seriously piss Nintendo off in the process, for a double win)
