"*Edit5*: The hacker used personal information about me to convince
Steam Support he was me and get them to give their account to him. So
none of the above technical approaches fell victim, but he did have
access to enough personal information to social engineer his way in. I
haven't been as paranoid careful about my identity as I should have
been, so be careful with yours!"
What a twist. This should not be possible.
-ics
23.1.2012 0:14, Valentin G. kirjoitti:
SteamGuard could use some additional configuration options. I want it
to be enabled at *all* times. I want a personal visit from VALVe staff
if an attempt to disable it is made.
Is that sentry file tied to the actual computer it's generated on?
Maybe that is an attack possibility. Get a hold on the file and be
able to log in from any computer you want.
On Sun, Jan 22, 2012 at 9:44 PM, Ryan Stecker<[email protected]> wrote:
Your machine/account is identified by a file in the steam directory. The
file is called a "sentry file" and it's name is in the form of
ssfn<numbers>. The steam client provides a sha1 hash of this file at logon,
and the back-end confirms the validity of it.
Deleting the file would require you to enter another email auth code, and
Steam will generate another sentry file.
You cannot log into a SG enabled account without either the sentry file
belonging to the account or the email auth code.
On Sun, Jan 22, 2012 at 2:18 PM, ics<[email protected]> wrote:
I don't know what they did but i used to get a lot of promps about
entering the code delivered to my e-mail in order to log in previously. I
haven't seen that dialog for months.
I also know that the thing leaves some sort of imprint to the machine
itself but ip-changes especially did this prompt for me.
-ics
22.1.2012 22:03, [email protected] kirjoitti:
As far as i know steam guard check the computer, not ip. Maybe im wrong
but i was never blocked because of a ip change.
I agree, but there seems to be a lot of users with dialups who'se ip's
change all the time and they previously posted on the forums and complained
a lot about it. Perhaps this led to decision to lighten Steam Guard
settings or features.
Atleast Valve added craft recepies for the xmas weapons for TF2 after
considerable whine on SPUF TF2 section and suddenly the recepies were
added, leaving the much older recepies off and not added.
This proves that Valve listens and reads the forums but the decisions
are not always what they should be. Small minority seems to be making too
much noise there and affecting decisions.
-ics
22.1.2012 21:33, [email protected] kirjoitti:
I think steam guard should be on ALWAYS, theres no point to disable it.
It just take 2 minutes to enable a new computer so shoulnt be an option to
be able to disable it. Just my opinion...
SteamGuard can be disabled entirely from a trusted computer without
*any* notification or hassle.
Don't like this.
On Sun, Jan 22, 2012 at 7:06 PM, Mart-Jan Reeuwijk<[email protected]>
wrote:
hmm, I do have hope they mean with that the SteamGuard protected
account in
question. And it DOES send a mail.... after, to notify you of the
change and a link to steam support, see below:
==============================**==
Dear<snip>,
This email message confirms that your Steam account contact email
address has been successfully changed.
We are sending this notice to ensure the privacy and security of your
Steam account. If you authorized this change, no further action is
necessary. If you did not authorize this change, or if you need
additional help with your account, please follow this link to the
Steam
Support site and submit a request for assistance:
http://support.steampowered. com/cgi-bin/steampowered.cfg/
php/enduser/std_adp.php?p_ faqid=197
Thanks for reviewing this information and helping us to maintain the
privacy and security of your account.
The Steam Support Team
http://www.steampowered.com
==============================**=======
I'd be against any "easy" like this.
Maybe implement a "panic" button, where the old login info can be
used for x
time (3 days or some) after it got changed, and then the account can
be
locked with this by the real owner, only undoable by a support ticket.
______________________________**__
From: Ryan Stecker<[email protected]**>
To: Mart-Jan Reeuwijk<[email protected]>; Half-Life dedicated
Linux server mailing
list<hlds_linux@list.**valvesoftware.com<[email protected]>
Sent: Sunday, 22 January 2012, 17:53
Subject: Re: [hlds_linux] Another high profile trader/admin hijacked.
There was a recent feature addition to steam that allows email
changes without confirmation for trusted computers.
http://store.steampowered.com/**news/7114/<http://store.steampowered.com/news/7114/>
I believe "trusted computer" in that sense means any account with SG
enabled and authenticated. That would make it a quite frightening change,
and I believe email confirmation should always be required.
It may be possible he fell victim to this.
On Sun, Jan 22, 2012 at 10:17 AM, Mart-Jan Reeuwijk<
[email protected]> wrote:
I can confirm that he is:
- Author on EventScripts
- Admin on SteamRep.com
- Reddit Admin "thorax"
- And I did have a "slowchat" with him on a private section of a
forum. He confirmed to me and others there that the security he listed
there was as how he runs it.
Quote from him from that forum's private section:
I have to go to bed, but you can see my security precautions here:
http://www.reddit.com/r/**tf2trade/comments/orbjk/iama_**
mattie_fellow_with_the_**largest_unusual_tc/<http://www.reddit.com/r/tf2trade/comments/orbjk/iama_mattie_fellow_with_the_largest_unusual_tc/>
My password policy was numbers, letters, spaces, upper-case
letters, but only 9 characters on Steam.
My passwords are different everywhere. He somehow disabled
SteamGuard, probably remotely.
If you recall, I helped datastorm review that hijack avoidance
document. You pretty much don't get more paranoid than me. I run 3 types of
malware detection and use Process Explorer multiple times a day to
look
for any unsigned processes running to identify exactly what they
are.
Whatever this hijacker's attack is, it's not something common and
not
something that we have good explicit tips for people to avoid. I'll
continue brainstorming tomorrow
*snip non relevant*
As I may have mentioned, he told multiple people that he targetted
me
specifically because I tried to stop so many of the latest hijacks
and
because I gave people tips to stop hijackings (especially double
hijackings). I'm sure money had something to do with it, too, but he
told my wife he did it for the challenge. Well, he won.
[/Quote]
Shame that his collection with regaining the account will be duped,
and therefore be worth a lot less. Also a pain that SteamGuard isn't the
rigid security I'd hoped for
______________________________**__
From: ics<[email protected]>
To: Half-Life dedicated Linux server mailing list<hlds_linux@list.
**valvesoftware.com<[email protected]>>
Sent: Sunday, 22 January 2012, 16:11
Subject: Re: [hlds_linux] Another high profile trader/admin
hijacked.
Thats a bit of interesting thing in any case anyway, as if that's
really the Mattie and he did have security in order listed on reddit and
still was hacked, then does Steam has security issues again (forums
anyone)? Steamguard ineffective? Interesting to see if he had the fault or
Steam.
-ics
22.1.2012 16:43, Yuki kirjoitti:
Correct! However, sorry to burst your bubble, but technically
this is Source server administration related.
http://mattie.net/cs/
While it may be on a tangent, there's no need to blacklist a
topic like this from the list!
On 22/01/2012 14:39, Alex Kowald wrote:
This mailing list is for source server administration related
topics.
On Sun, Jan 22, 2012 at 8:31 AM, Mart-Jan Reeuwijk<
[email protected]> wrote:
another high profile trader admin hijacked:
http://www.reddit.com/r/**tf2trade/comments/orbjk/iama_**
mattie_fellow_with_the_**largest_unusual_tc/<http://www.reddit.com/r/tf2trade/comments/orbjk/iama_mattie_fellow_with_the_largest_unusual_tc/>
steamID: Mattie! (busy - sorry)
steamID32: STEAM_0:0:5712733
steamID64: http://steamcommunity.com/**
profiles/76561197971691194<http://steamcommunity.com/profiles/76561197971691194>
customURL:
steamrepURL: http://www.steamrep.com/index.**
php?id=76561197971691194<http://www.steamrep.com/index.php?id=76561197971691194>
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