Lucky with routing? By looking at the names and profiles, i'm basically in same country with these guys and i still had the lags. I don't know their ISP's though.

-ics

Hasser Css kirjoitti:
But it has only started happening today, yes? I still do assume it is DDoS and they just happen to get lucky with their routing. see http://www.netnod.se/ix-stats/14all_ix-packets-public.pl?log=stockholm.geb-packets.642 .. those nice outgoing PPS spikes at around 16 and 18 when I got the lag out for 5 minutes or so. Some people on enemy team could rush fine with SMGs, some couldn't, then it calmed down.

Don't think any server-specific exploit exists other than video I linked, or at least I hope not. Only thing I could think of is something using all the CPU of a particular server..

On Wed, Apr 6, 2016 at 10:06 PM, ics <i...@ics-base.net <mailto:i...@ics-base.net>> wrote:

    At start, his friends were lagging also, everybody's ping got up.
    Then after few rounds they were able to walk and run normally. The
    reddit post i made has also brought up 3 more cases by now of this
    happening.

    -ics

    Hasser Css kirjoitti:

        I got this while playing MM on EU North as well, twice today.
        Are you sure they are using an exploit? It seems to have been
        some kind of DDoS today, because I got the same thing too.
        Maybe their friends weren't affected by it due to different
        routing or something?

        There is still this exploit however:
        https://www.youtube.com/watch?v=4Sa-wFRe64c
        But you would have been kicked with "no Steam-login", not just
        lagging a lot. (Please fix this Valve ^)

        On Wed, Apr 6, 2016 at 9:06 PM, ics <i...@ics-base.net
        <mailto:i...@ics-base.net> <mailto:i...@ics-base.net
        <mailto:i...@ics-base.net>>> wrote:

            Hello

            Someone has found a way to lag certain players on a
        gameserver.
            Not just ddos the server but only some players on it,
        while saving
            their friends from most of the attack. While this concerns
        only
            Valve server for now, any community server is propably also
            vulnerable to this action.

            I played today a match, on a Valve server less than 30
        mins ago.
            The server IP in question was 155.133.242.40:27066
        <http://155.133.242.40:27066>
            <http://155.133.242.40:27066> (Valve CS:GO EU North Server
            (srcds021.187.52))

            In this game, our whole team started lagging. The other team
            recovered from it mostly on the next round, allowing them to
            continuously slay us to our base. Here is a GOTV demo of
        the match
        
steam://rungame/730/76561202255233023/+csgo_download_match%20CSGO-DFeLE-OufVt-jEYE2-atvWf-mYb7L
            and if you skip to the beginning of the15th round, you
        will see it
            clearly. You can also watch part of in eyes demo from the same
            match.
        http://server2.pelipurkki.fi/~dustin/crap/kidsddos.dem
        <http://server2.pelipurkki.fi/%7Edustin/crap/kidsddos.dem>
            <http://server2.pelipurkki.fi/%7Edustin/crap/kidsddos.dem>

            The main culprit was also aimbotting, and was appearing as:

            #  3 2 "Tapio #DERANK" STEAM_1:0:120573925 22
        <tel:120573925%2022>
            <tel:120573925%2022>:24 275 94 active 80000

            His friends were:

            #  8 7 "✪_._Ip3rion_._✪" STEAM_1:1:94940856 22
        <tel:94940856%2022>
            <tel:94940856%2022>:24 221 49 active 80000
            # 10 9 "✪ Konto • G #Τσαβ" STEAM_1:1:95047037 22:24 260 49
        active
            80000
            # 12 11 "tonton" STEAM_1:0:167309801 22:24 190 86 active 80000

            That being said, I don't think it was this guy who figured
        it out,
            he's not smart enough for it. But someone has and i'm not
        sure how
            they managed to dig information of players but this surely
        will
            become an issue if something is not made for the matter.
        This may
            be part of some cheat software by default. I don't really
        know.

            -ics

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