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Old 07-15-2023, 12:23 AM   #1
TheJooomes
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Lots of unexplained WiFi traffic recently


The WiFi indicator on my laptop has been flashing about 90% of the uptime on my laptop at idle. It didn't used to be nearly this bad. It's to the point where I wonder if malware is the culprit.

I got a capture from Wireshark. Could someone more knowledgable than me please look at the feed and let me know if anything looks suspicious for an idle system.

I'm running Void Linux w/i3WM and the only thing I could think would be generating frequent network traffic is sshd. But even with that disabled it's still really bad.

172.233.214.246:81/wlp12s0.pcapng
LQ keeps saying invalid file.
 
Old 07-15-2023, 05:49 AM   #2
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i have a program that maybe could help to solve what kind of traffic it is, its called sniffnet.
https://www.sniffnet.net
 
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Old 07-15-2023, 01:23 PM   #3
jayjwa
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There's two things that stand out, one is SNMP. There's GET requests to 10.0.0.104 from 105. 104 responds it's not evening listening for SNMP. If you use SNMP that's fine - it's just odd to see it on a home network. I couldn't find the OID (1.3.6.1.2.1.25.3.2.1.5.1) with a quick search, but it's probably something from HostResources (hr). Maybe 'snmpget -c public -v1 127.0.0.1 hrStorageSize.1'.

The second thing is UPNP, which is the M-SEARCH/SSDP stuff coming from 10.0.0.105.
https://serverfault.com/questions/64...t-does-it-mean

The rest of the stuff is the usual ARPs and IP6 network stuff. Did you leave a wireless network open? Misconfigured Windows machines around? I don't think it's malware.
 
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