[GH-ISSUE #1019] Connection issue with Virtualbox as Server. #728

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opened 2026-02-27 15:51:36 +03:00 by kerem · 0 comments

kerem commented

2026-02-27 15:51:36 +03:00

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Originally created by @Peete724 on GitHub (Sep 6, 2021).
Original GitHub issue: https://github.com/quasar/Quasar/issues/1019

I'm using a VM with Win10 for my server.
Port is open and forwarded, in Virtualbox it's forwarded with default gateway 10.0.2.2 so it could reach my VM through NAT.
Quasar is allowed in vm's firewall, Virtualbox is allowed in host's firewall.
In build I used both dns and 127.0.0.1 loop.

I get connection from the loop when I infected my VM, all working fine but no connections from WAN.
I've double-checked that the port is open and forwarded.
Tried infected two other pc's but none of them connects but netstat gives me syn_send every other second but nothing more.
Defender was not activated when I infected both pc's, and I allowed the trojan in defender when it went back up before I disabled it again.

Any ideas what to do next?

Originally created by @Peete724 on GitHub (Sep 6, 2021). Original GitHub issue: https://github.com/quasar/Quasar/issues/1019 I'm using a VM with Win10 for my server. Port is open and forwarded, in Virtualbox it's forwarded with default gateway 10.0.2.2 so it could reach my VM through NAT. Quasar is allowed in vm's firewall, Virtualbox is allowed in host's firewall. In build I used both dns and 127.0.0.1 loop. I get connection from the loop when I infected my VM, all working fine but no connections from WAN. I've double-checked that the port is open and forwarded. Tried infected two other pc's but none of them connects but netstat gives me syn_send every other second but nothing more. Defender was not activated when I infected both pc's, and I allowed the trojan in defender when it went back up before I disabled it again. Any ideas what to do next?