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Hacked PC - random sounds playing (sh.itjust.works)

submitted 1 month ago* (last edited 2 weeks ago) by LOLseas@sh.itjust.works to c/linux@programming.dev

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My fellow penguins,

I have been pwned. What started off as weeks of smiling everytime I heard a 7-10s soundbyte of Karma Factory's "Where Is My Mind" has now devolved into hearing dashes and dots (Morse Code) and my all-time favorite, a South Park S13: Dead Celebrities soundbyte of Ike's Dad saying, "Ike, we are sick of you talking about ghosts!"

It's getting old now.

I feel like these sounds should be grepable in some log somewhere, but I'm a neophyte to this. I've done a clean (secure wipe >> reinstall) already, the sounds returned not even a day later.

Distro is Debian Bookworm. So how do I find these soundbytes? And how do I overcome this persistence? UFW is blocking inbound connection attempts everyday, but the attacker already established a foothold.

Thank you in advance. LOLseas

Update: post-reinstallation and monitoring incoming connections, I'm happy to say the sounds have not returned. This has given me the motivation to install a Netgate 1100 with pfSense ahead of the PC. Thank you all!

(page 2) 21 comments

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[–] rudyharrelson@lemmy.radio 1 points 1 month ago (1 children)

Did you try running a scan for malware? I usually use ClamAV. It's a simple, FOSS anti-virus scanner for Linux. Can run it from the terminal or install a version with a GUI if you'd prefer that.

[–] LOLseas@sh.itjust.works 1 points 1 month ago* (last edited 1 month ago)

Yes, did a ClamAV with recursive scan, no hits.

Edit: typo

[–] ChairmanMeow@programming.dev 1 points 4 weeks ago (1 children)

Last time I heard about weird audio playing it was Steam's built-in soundtrack player picking up all kinds of weird stuff and randomly playing it (or getting triggered through some shortcut or something)... just to rule it out, do you have Steam installed?

[–] LOLseas@sh.itjust.works 1 points 4 weeks ago (1 children)

I do. But I counter with this: I had never even heard of the band Karma Factory until that soundbyte played. With the help of an F-droid app on my phone, "Audile", I was able to quickly mic the soundbyte and that helped me figure out the song clip. There is absolutely no chance Steam factored into this lolfest.

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