Somebody earlier in the their asked about what "drop" message was being
generated. Unfortunately, it doesn't appear to show-up in my logs on the
server for some reason.

On Tue, Mar 17, 2015 at 6:39 PM, Bottiger <bottige...@gmail.com> wrote:

> This doesn't look like valid tickets being reused to me.
>
> Client 3160 [I:16:229567929] connected to universe 16, but game server
> [G:1:809] is running in universe 1
> S3: Client connected with invalid ticket: UserID: c58
> S3: Client connected with invalid ticket: UserID: c53
> S3: Client connected with invalid ticket: UserID: c53
> S3: Client connected with invalid ticket: UserID: c53
> S3: Client connected with invalid ticket: UserID: c53
> S3: Client connected with invalid ticket: UserID: c53
> S3: Client connected with invalid ticket: UserID: c53
> Client 3155 [I:0:1191841122] connected to universe 0, but game server
> [G:1:809] is running in universe 1
> S3: Client connected with invalid ticket: UserID: c53
> Client "Wololo" connected (72.69.41.145:27005).
> STEAMAUTH: Client Wololo received failure code 8
> Dropped Wololo from server (Invalid STEAM UserID Ticket
> )
>
> On Tue, Mar 17, 2015 at 6:30 PM, Ryan Stecker <voidedwea...@gmail.com>
> wrote:
> >>As you deduced, it is possible to spoof any SteamID you want and play
> > for a couple of minutes before the server kicks you.
> >
> > No, it isn't. Steam authentication tickets are signed by Valve's servers.
> > You cannot craft a ticket containing any SteamID you want.
> >
> > You can, however, subject the server to a replay attack by reusing
> another
> > user's authentication ticket. This allows users to play on your server
> with
> > whatever SteamID they borrowed for approximately 1-2 minutes until the
> > Steam server rejects them and the game server kicks them.
> >
> > On the original topic, there's nothing invalid about that SteamID in the
> > OPs post:
> >
> > 08:29:18°pm (@VoiDeD) !sid [U:1:96295245]
> > 08:29:45°pm (idler2) VoiDeD: STEAM_0:1:48147622 / [U:1:96295245] (UInt64
> =
> > 76561198056560973, IsValid = True, Universe = Public, Instance = desktop
> > (1), Type = Individual, AccountID = 96295245)
> > 08:29:45°pm (idler2) VoiDeD: † (
> > http://steamcommunity.com/profiles/76561198056560973/) (Last Online =
> > 3/18/2015 1:11:21 AM, Last Offline = 3/18/2015 1:11:39 AM)
> >
> >
> > On Tue, Mar 17, 2015 at 8:12 PM, Bottiger <bottige...@gmail.com> wrote:
> >
> >> We experienced this several months ago and reported it to Eric Smith
> >> but have not heard anything from him for a long time so we stopped
> >> sending him exploits like this.
> >>
> >> As you deduced, it is possible to spoof any SteamID you want and play
> >> for a couple of minutes before the server kicks you.
> >>
> >> We tried kicking or freezing people that didn't get verified within 30
> >> seconds but unfortunately this also happens frequently to normal
> >> players.
> >>
> >>
> >>
> >> On Tue, Mar 17, 2015 at 5:59 PM, Weasels Lair <wea...@weaselslair.com>
> >> wrote:
> >> > Wondering if any other admin's have seen this.
> >> >
> >> > Today I had a player join with a SteamID that I was unable to ban by
> ID.
> >> > From SourceMod I kept getting a message about waiting another 30
> seconds
> >> > and trying again, because that SteamID was not verified (yet)?
> >> >
> >> > In the end, I resorted to fire-walling-off his source IP address for
> now.
> >> >
> >> > When I punched his SteamID3 (which was showing as "[U:1:96295245]")
> into
> >> > SteamIDConverter.com, it kept showing "unknown" for their SteamID64,
> >> > "[U:1:0]" for their SteamID3, and blank for their plain SteamID?
> >> >
> >> > So, I am thinking it is a completely bogus/fake/spoofed SteamID.
> >> >
> >> > He seemed to be able to play only for a few minutes at a time, before
> he
> >> > would get dropped from the server for having an invalid SteamID.
> >> > Basically, he was in-game long enough to hack (aimbot) and disrupt the
> >> game
> >> > (repeatedly).  He was able to just do that over and over, until I just
> >> > blocked his source IP address all-together.
> >> > _______________________________________________
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> >>
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